The 2009 Edition of the Idaho State Plumbing Code© (ISPC) contains plumbing design and construction standards. Provisions contained in the ISPC provide minimum standards to safeguard life or limb, health, property and public welfare. It also protects against hazards that may arise from the use of plumbing piping and systems by regulating and controlling the design, construction, installation, quality of materials, location and operation of plumbing piping systems within the State of Idaho. Based on the 2009 Uniform Plumbing Code©, this code includes the State of Idaho amendments integrated into the Uniform Plumbing Code.

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PDF Pages	PDF Title
1	Cover
2	Preface Notice
4	Title Page
5	Revision Markings
6	2009 UPC Foreword
7	Tentative Interim Amendment (TIA)
8	Committee on Uniform Plumbing Code
9	Form for Proposals on IAPMO UPC/UMC Committee Documents
10	Instructions for Submitting Proposals
12	Table of Contents Chapter 1 Administration Chapter 2 Definitions Chapter 3 General Regulations Chapter 4 Plumbing Fixtures andFixture Fittings
13	Chapter 5 Water Heaters
15	Chapter 6 Water Supply and Distribution
16	Chapter 7 Sanitary Drainage Chapter 8 Indirect Wastes
17	Chapter 9 Vents Chapter 10 Traps and Interceptors
18	Chapter 11 Storm Drainage Chapter 12 Fuel Piping
20	Chapter 13 Health Care Facilities and Medical Gas and Vacuum Systems
21	Chapter 14 Referenced Standards Chapter 15 Firestop Protection Chapter 16 Nonpotable Water Reuse Systems
22	Appendices Table of Contents AppendixA Recommended Rules for Sizing theWater Supply System Appendix B Explanatory Notes on Combination Waste and Vent Systems Appendix D Sizing Stormwater Drainage Systems Appendix E Manufactured/Mobile HomeParks and Recreational Vehicle Parks Appendix F Firefighter Breathing Air Replenishment Systems Appendix I Installation Standards Table of Content Appendix K Private Sewage Disposal Systems Appendix L Alternate Plumbing Systems Useful Tables Title 54 Professions, Vocations, and Businesses IDAPA 07 07.02.02 Rules Governing Plumbing Permits
23	IDAPA 07 07.02.03 Rules Governing Permit Fee Schedule IDAPA 07 07.02.04 Rules Governing Plumbing Safety Inspections IDAPA 07 07.02.05 Rules Governing Plumbing Safety Licensing IDAPA 07 07.02.06 Rules Concerning Idaho State Plumbing Code IDAPA 07 07.02.07 Rules Governing Civil Penalties Index
24	Chapter 1 Adminstration 101.0 Title, Scope, and General. 101.1 Title. 101.2 Purpose. 101.3 Plans Required. 101.4 Scope. 101.4.1 The provisions of this code shall apply to the erection, installation, alteration, repair, relocation, replacement, addition to, use, or maintenance of plumbing systems within this jurisdiction. 101.4.1.1 Repairs and Alterations. 101.4.1.1.1 In existing buildings or premises in which plumbing installations are to be altered, repaired, or renovated, deviations from the provisions of this code are permitted, provided such deviations are found to be necessary and are first approved by the Authority Having Jurisdiction. 101.4.1.1.2 Existing building sewers and building drains shall be permitted to be used in connection with new buildings or new plumbing and drainage work only when they are found on examination and test to conform in all respects to the requirements governing new work, and the proper Authority Having Jurisdiction shall notify the owner to make any changes necessary to conform to this code. 101.4.1.1.3 Openings into a drainage or vent system, excepting those openings to which plumbing fixtures are properly connected or which constitute vent terminals, shall be permanently plugged or capped in an approved manner, using the appropriate materials required by this code. 101.4.1.2 Maintenance. 101.4.1.3 Existing Construction. 101.4.1.4 Conflicts Between Codes. 101.4.2 Additions, alterations, repairs, and replacement of plumbing systems shall comply with the provisions for new systems except as otherwise provided in Section 101.5. 101.4.3 The provisions in the appendices are intended to supplement the requirements of this code and shall not be considered part of this code unless formally adopted as such. TABLE
25	101.5 Application to Existing Plumbing System. 101.5.1 Additions, Alterations, or Repairs. 101.5.2 Health and Safety. 101.5.3 Existing Installation. 101.5.4 Changes in Building Occupancy. 101.5.5 Maintenance. 101.5.6 Moved Buildings. 102.0 Organization and Enforcement. 102.1 Authority Having Jurisdiction. 102.2 Duties and Powers of the Authority Having Jurisdiction. 102.2.1 The Authority Having Jurisdiction shall be permitted to appoint such assistants, deputies, inspectors, or other employees as necessary to carry out the functions of the department and this code. 102.2.2 Right of Entry. 102.2.3 Stop Orders.
26	102.2.4 Authority to Disconnect Utilities in Emergencies. 102.2.5 Authority to Condemn. 102.2.6 Liability. 102.3 Violations and Penalties. 102.3.1 Violations. 102.3.2 Penalties. 103.0 Permits and Inspections. 103.1 Permits. 103.1.1 Permits Required. 103.1.2 Exempt Work. 103.1.2.1 The stopping of leaks in drains, soil, waste, or vent pipe, provided, however, that should any trap, drainpipe, soil, waste, or vent pipe become defective and it becomes necessary to remove and replace the same with new material, the same shall be considered as new work and a permit shall be procured and inspection made as provided in this code. 103.1.2.2 The clearing of stoppages, including the removal and reinstallation of water closets, or the repairing of leaks in pipes, valves, or fixtures, provided such repairs do not involve or require the replace mentor rearrangement of valves, pipes, or fixtures. 103.1.3 Licensing. 103.2 Application for Permit. 103.2.1 Application. 103.2.1.1 Identify and describe the work to be covered by the permit for which application is made. 103.2.1.2 Describe the land upon which the proposed work is to be done by legal description, street address, or similar description that will readily identify and definitely locate the proposed building or work. 103.2.1.3 Indicate the use or occupancy for which the proposed work is intended.
27	103.2.1.4 Be accompanied by plans, diagrams, computations, and other data as required in Section 103.2.2. 103.2.1.5 Be signed by the permittee or the permittee’s authorized agent, who may be required to submit evidence to indicate such authority. 103.2.1.6 Give such other data and information as may be required by the Authority Having Jurisdiction. 103.2.2 Plans and Specifications. 103.2.3 Information on Plans and Specifications. 103.3 Permit Issuance. 103.3.1 Issuance. 103.3.2 Retention of Plans. 103.3.3 Validity of Permit. 103.3.4 Expiration.
28	103.3.5 Suspension or Revocation. 103.4 Fees. 103.4.1 Permit Fees. 103.4.2 Plan Review Fees. 103.4.3 Expiration of Plan Review. 103.4.4 Investigation Fees: Work Without a Permit. 103.4.4.1 Whenever any work for which a permit is required by this code has been commenced without first obtaining said permit, a special investigation shall be made before a permit may be issued for such work. 103.4.4.2 An investigation fee, in addition to the permit fee, shall be collected whether or not a permit is then or subsequently issued. 103.4.5 Fee Refunds. 103.4.5.1 The Authority Having Jurisdiction shall be permitted to authorize the refunding of any fee paid hereunder that was erroneously paid or collected. 103.4.5.2 The Authority Having Jurisdiction shall be permitted to authorize the refunding of not more than a percentage, as determined by this jurisdiction when no work has been done under a permit issued in accordance with this code. 103.4.5.3 The Authority Having Jurisdiction shall not authorize the refunding of any fee paid except upon written application filed by the original permittee not to exceed one hundred and eighty (180) days after the date of fee payment.
29	103.5 Inspections. 103.5.1 General. 103.5.1.1 Inspection. 103.5.1.2 Scope. 103.5.1.3 Covering or Using. 103.5.1.4 Uncovering. 103.5.2 Operation of Plumbing Equipment. 103.5.3 Testing of Systems. 103.5.3.1 Test. 103.5.3.2 Test Waived. 103.5.3.3 Exceptions. 103.5.3.4 Tightness. 103.5.4 Inspection Requests. 103.5.4.1 Advance Notice. 103.5.4.2 Responsibility.
30	103.5.5 Other Inspections. 103.5.5.1 Defective Systems. 103.5.5.2 Moved Structures. 103.5.6 Reinspections. 103.5.6.1 Corrections. 103.5.6.2 Retesting. 103.5.6.3 Approval. 103.6 Connection Approval. 103.6.1 Energy Connections. 103.6.2 Other Connections. 103.6.3 Temporary Connections. 103.7 Unconstitutional. 103.7.1 If any section, subsection, sentence, clause, or phrase of this code is, for any reason, held to be unconstitutional, such decision shall not affect the validity of the remaining portions of this code.
31	103.8 Validity. 103.8.1 If any provision of this code, or the application thereof to any person or circumstance, is held invalid, the remainder of the code, or the application of such provision to other persons or circumstances, shall not be affected thereby. 103.8.2 Wherever in this code reference is made to an appendix, the provisions in the appendix shall not apply unless specifically adopted.
32	TABLE 1-1 Plumbing Permit Fees
34	Chapter 2 Definitions 201.0 General. 202.0 Definition of Terms. 203.0 – A – 204.0 – B –
35	205.0 – C –
36	206.0 – D – 207.0 – E – 208.0 – F –
37	209.0 – G – 210.0 – H – 211.0 – I –
38	212.0 – J – 213.0 – K – 214.0 – L – 215.0 – M – 216.0 – N –
39	217.0 – O – 218.0 – P –
40	219.0 – Q – 220.0 – R – 221.0 – S –
41	222.0 – T – 223.0 – U – 224.0 – V – 225.0 – W –
42	226.0 – X – 227.0 – Y – 228.0 – Z –
44	Chapter 3 General Regulations 301.0 Materials – Standards and Alternates. 301.1 Minimum Standards. 301.1.1 Approvals. 301.1.2 Marking. 301.1.3 Standards. 301.1.4 Existing Buildings. 301.2 Alternate Materials and Methods of Construction Equivalency. 301.2.1 Testing. 301.2.1.1 301.2.1.2 301.3 Flood Hazard Resistance. 301.3.1 General.
45	301.3.2 Flood Hazard Areas Subject to High-Velocity Wave Action. 301.4 Alternative Engineered Design. 301.4.1 Design Criteria. 301.4.2 Permit Application. 301.4.3 Technical Data. 301.4.4 Design Documents. 301.4.5 Design Approval. 301.4.6 Design Review. 301.4.7 Inspection and Testing. 302.0 Iron Pipe Size (IPS) Pipe. 303.0 Disposal of Liquid Waste. 304.0 Connections to Plumbing System Required. 305.0 Sewers Required. 305.1 305.2 305.3
46	306.0 Damage to Drainage System or Public Sewer. 306.1 306.2 307.0 Industrial Wastes. 307.1 307.2 308.0 Location. 308.1 308.2 309.0 Improper Location. 310.0 Workmanship. 310.1 310.2 310.3 310.4 Installation Practices. 311.0 Prohibited Fittings and Practices. 311.1 311.2 311.3 311.4 311.5 311.6 311.7 311.8 Screwed Fittings.
47	312.0 Independent Systems. 313.0 Protection of Piping, Materials, and Structures. 313.1 313.2 313.3 313.4 313.5 Protectively Coated Pipe. 313.6 313.7 313.8 Waterproofing of Openings. 313.9 313.10 Sleeves. 313.10.1 313.10.2 313.10.3 313.10.4 313.11 313.12 Ratproofing. 313.12.1 313.12.2 313.12.3
48	313.12.4 314.0 Hangers and Supports. 314.1 314.2 314.3 314.4 314.5 314.6 314.7 315.0 Trenching, Excavation, and Backfill. 315.1 315.2 315.3 Open Trenches 315.4 316.0 Joints and Connections. 316.1 Types of Joints. 316.1.1 Threaded Joints. Table 3-1 Hanger Rod Sizes
49	316.1.2 Wiped Joints. 316.1.3 Soldered Joints. 316.1.4 Flared Joints. 316.1.5 Flexible Compression Factory-Fabricated Joints. 316.1.6 Solvent Cement Plastic Pipe Joints. 316.1.7 Brazing and Welding. 316.1.8 Pressure-Lock-Type Connection. 316.1.9 Pressed Fitting. 316.1.10 Push-fit Fitting. 316.1.11 Heat Fusion Weld Joints. 316.2 Special Joints. 316.2.1 Copper Tubing to Screw Pipe Joints. 316.2.2 Unions.
50	316.2.3 Plastic Pipe to Other Materials. 316.3 Flanged Fixture Connections. 316.4 Prohibited Joints and Connections. 316.4.1 Drainage System. 316.4.2 317.0 Increasers and Reducers. 318.0 Food-Handling Establishments. 318.1 318.2 318.3 318.4 318.5 319.0 Test Gauges. 319.1 319.2 319.3 319.4 320.0 Medical Gas and Vacuum Systems.
51	Table 3-2 Hangers and Supports
52	Chapter 4 Plumbing Fixtures and Fixture Fittings 401.0 Materials – General Requirements. 401.1 Quality of Fixtures. 401.2 Lead. 401.3 Plumbing fixture fittings covered under thes cope of NSF 61 shall comply with the requirements of NSF 61. 402.0 Water-Conserving Fixtures and Fittings. 402.1 Flush volumes for low-consumption and water-saver water closets and urinals shall be in accordance with applicable standards referenced in Table 14-1. 402.2 Water Closets. 402.3 Urinals. 402.3.1 Nonwater Urinals. 402.4 Metered Faucets. 402.5 Emergency Safety Showers. 402.6 Installation. 403.0 Overflows. 404.0 Strainers and Connections. 404.1 Strainers. 404.2 Connections. 404.3 Continuous wastes and fixture tailpieces shall be constructed from the materials specified in Section 701.0 for drainage piping, provided, however, that such connections where exposed or accessible shall be permitted to be of seamless drawn brass not less than No. 20 B & S Gauge (0.032 inches) (0.8 mm). TABLE
53	404.4 Approved wye or other directional-type branch fittings shall be installed in continuous wastes connecting or receiving the discharge from food waste disposal units, dishwashers, clotheswashers, or other force discharge fixtures or appliances. 405.0 Prohibited Fixtures. 405.1 Water closets having an invisible seal or an unventilated space or having walls which are not thoroughly washed at each discharge shall be prohibited. 405.2 Prohibited Urinals. 405.3 Fixed wooden, or tile wash trays or sinks for domestic use shall not be installed in any building designed or used for human habitation. 406.0 Special Fixtures and Specialties. 406.1 Water and Waste Connections. 406.2 Restaurant kitchen and other special use sinks shall be permitted to be made of approved-type bonderized and galvanized sheet steel of not less than No. 16 U.S. gauge (0.0625 inches) (1.6 mm). 406.3 Special Use Fixtures. 406.4 Zinc Alloy Components. 407.0 Installation. 407.1 Cleaning. 407.2 Joints. 407.3 Securing Fixtures. 407.4 Wall-Hung Fixtures. 407.5 Setting. 407.6 Installations for Persons with Disabilities. 407.7 Supply Fittings. 408.0 Water Closets. 408.1 Water closet bowls for public use shall be of the elongated type. 408.2 Water Closet Seats. 408.2.1 Water closet seats shall be of smooth, non-absorbent material.
54	408.2.2 Water closet seats, for public use, shall be of the elongated type and either of the open front type or have an automatic seat cover dispenser. 408.2.3 Water closet seats shall be properly sized for the water closet bowl type. 408.3 Securing Floor-Mounted, Back-Outlet Water Closet Bowls. 408.4 Closet Rings (Closet Flanges). 408.4.1 Closet rings (closet flanges) for water closets or similar fixtures shall be of an approved type and shall be bronze, copper, hard lead, cast-iron, galvanized malleable iron, ABS, PVC, or other approved materials. 408.4.2 Caulked-on closet rings (closet flanges) shall be not less than one-fourth (1/4) inch (6.4mm) thick and not less than two (2) inches (51 mm) in overall depth. 408.4.3 Closet rings (closet flanges) shall be burned or soldered to lead bends or stubs, shall be caulked to cast-iron soil pipe, shall be solvent cemented to ABS and PVC, and shall be screwed or fastened in an approved manner to other materials. 408.4.4 Closet rings (closet flanges) shall be adequately designed and secured to support fixtures connected thereto. 408.4.5 Closet screws, bolts, washers, and similar fasteners shall be of brass, copper, or other listed, equally corrosion-resistant materials. 409.0 Urinals. 410.0 Flushing Devices for Water Closets and Urinals. 410.1 Flushing Devices Required. 410.2 Automatic Flushing Tanks. 410.3 Flushometer Valves. 410.4 Water Supply for Flush Tanks. 410.5 Overflows in Flush Tanks.
55	411.0 Floor Drains and Shower Stalls. 411.1 Floor drains shall be considered plumbing fixtures, and each such drain shall be provided with an approved-type strainer having a waterway equivalent to the area of the tail piece. 411.2 Location of Floor Drains. 411.2.1 Toilet rooms containing two (2) or more water closets or a combination of one (1) water closet and one (1) urinal, except in a dwelling unit. 411.2.2 Commercial kitchens and in accordance with Section 704.3. 411.2.3 Laundry rooms in commercial buildings and common laundry facilities in multi-family dwelling buildings. 411.3 Food Storage Areas. 411.4 Floor Slope. 411.5 Shower receptors are plumbing fixtures and shall conform to the general requirements contained in Section 401.0. 411.6 Each shower receptor shall be an approved type and be so constructed as to have a finished dam, curb, or threshold that is not less than one (1) inch (25.4 mm) lower than the sides and back of such receptor. 411.7 Shower compartments, regardless of shape, shall have a minimum finished interior of one thousand and twenty-four (1,024) square inches (0.66 m2) and shall also be capable of encompassing a thirty (30) inch (762 mm) circle. 411.8 When the construction of on-site built-up shower receptors are permitted by the Authority Having Jurisdiction, receptors built directly on the ground shall be water-tight and shall be constructed from approved-type dense, nonabsorbent and noncorrosive materials.
56	411.8.1 Tests for Shower Receptors. 411.9 Floors of public shower rooms shall have a nonskid surface and shall be drained in such a manner that wastewater from one bather shall not pass over areas occupied by other bathers. 411.10 Location of Valves and Heads. 411.11 Water Supply Riser.
57	412.0 Minimum Number of Required Fixtures. 412.1 Fixture Count. 412.2 Access to Fixtures. 412.2.1 In multi-story buildings, accessibility to the required fixtures shall not exceed one (1) vertical story. 412.2.2 Fixtures accessible only to private offices shall not be counted to determine compliance with this section. 412.3 Separate Facilities. 412.4 Fixture Requirements for Special Occupancies. 412.4.1 Additional fixtures may be required when unusual environmental conditions or referenced activities are encountered. 412.4.2 In food preparation areas, fixture requirements may be dictated by health codes. 412.4.3 Types of occupancy not shown in Table 4-1 shall be considered individually by the Authority Having Jurisdiction. 412.5 Facilities in Mercantile and Business Occupancies Serving Customers. 412.5.1 Requirements for customers and employees shall be permitted to be met with a single set of restrooms accessible to both groups. 412.5.2 Fixtures for customer use shall be permitted to be met by providing a centrally located facility accessible to several stores. 412.5.3 In stores with a floor area of one hundredand fifty (150) square feet (13.9 m2) or less, the requirement to provide facilities for employees shall be permitted to be met by providing a centrally located facility accessible to several stores. 412.6 Toilet Facilities for Workers. 413.0 Fixtures and Fixture Fittings for Persons with Disabilities. 413.1 Limitation of Hot Water Temperature for Public Lavatories 414.0 Bathtubs and Whirlpool Bathtubs. 414.1 A removable panel shall be provided to access and remove the pump. 414.2 The circulation pump shall be located above the crown weir of the trap. 414.3 The pump and the circulation piping shall be self-draining to minimize water retention in accordance with standards referenced in Table 14-1. 414.4 Suction fittings on whirlpool bathtubs shallc omply with the listed standards. 414.5 Limitation of Hot Water in Bathtubs and Whirlpool Bathtubs. 415.0 Installation of Fixture Fittings.
58	416.0 Bidets. 416.1 Materials. 416.2 Backflow Protection. 416.3 Limitation of Water Temperature in Bidets. 417.0 Future Fixtures. 418.0 Shower and Tub-Shower Combination Control Valves.
59	TABLE 4-1 Minimum Plumbing Facilities
64	Chapter 5 Water Heaters Part I 501.0 General. 502.0 Definitions. 502.1 Appliance Categorized Vent Diameter/Area. 502.2 Chimney. 502.3 Chimney, Factory-Built. 502.4 Chimney, Masonry. 502.5 Chimney, Metal. 502.6 Combustible Material. 502.7 Direct-Vent Appliances. 502.8 Flue Collar. 502.9 Gas Vent, Type B. 502.10 Gas Vent, Type L. 502.11 Indirect-Fired Water Heater. 502.12 Vent. TABLES TABLE 5-1 First Hour Rating FIGURES
65	502.13 Vent Connector. 502.14 Venting System. 502.15 Water Heater. 503.0 Permits. 504.0 Inspection. 504.1 Inspection of Chimneys or Vents. 504.2 Final Water Heater Inspection. 505.0 Water Heater Requirements. 505.1 Location. 505.1.1 Self-Closing Doors. 505.1.2 Gasketing. 505.2 Water heaters of other than the direct-vent type shall be located as close as practical to the chimney or gas vent. 505.3 Clearance. 505.3.1 The clearances shall not be such as to interfere with combustion air, draft hood clearance and relief, and accessibility for servicing. 505.3.2 Unlisted water heaters shall be installed with a clearance of twelve (12) inches (300 mm) on all sides and rear. 505.4 Pressure-Limiting Devices. 505.5 Temperature-Limiting Devices. 505.6 Temperature, Pressure, and Vacuum Relief Devices.
66	506.0 Oil-Burning and Other Water Heaters. 506.1 Water heaters deriving heat from fuels or types of energy other than gas shall be constructed and installed in accordance with approved standards. 506.2 Storage-type water heaters and hot water boilers deriving heat from fuels or types of energy other than gas, shall be provided with, in addition to the primary temperature controls, an over temperature safety protection device constructed, listed, and installed in accordance with nationally recognized applicable standards for such devices and a combination temperature and pressure-relief valve. 506.3 Oil-fired water heaters shall be installed in accordance with NFPA 31, Standard for the Installation of Oil-Burning Equipment. 506.4 Indirect-Fired Water Heaters. 506.4.1 Indirect-fired water heaters shall conform to applicable sections of the ASME Boiler and Pressure Vessel Code, or to one (1) of the other applicable standards shown in Table 14-1. 506.4.2 Indirect-fired water heater that incorporate a single-wall heat exchanger shall meet all of the following requirements: 507.0 Air for Combustion and Ventilation. 507.1 General. 507.1.1 Air for combustion, ventilation, and dilution of flue gases for gas utilization appliances installed in buildings shall be obtained by application of one (1) of the methods covered in Sections 507.2.1 through 507.7. 507.1.1.1 Clothes Dryer. 507.1.1.2 Clothes Dryer, Type 1. 507.1.1.3 Exhausting to the Outdoors. 507.1.1.4 Provisions for Make-Up Air. 507.1.2 Gas appliances of other than natural draft design and other than Category I vented appliances shall be provided with combustion, ventilation, and dilution air in accordance with the appliance manufacturer’s instructions.
67	507.1.3 Where used, a draft hood or a barometric draft regulator shall be installed in the same room or enclosure as the appliance served so as to prevent any difference in pressure between the hood or regulator and the combustion air supply. 507.1.4 Makeup air requirements for the operation of exhaust fans, kitchen ventilation systems, clothes dryers, and fireplaces shall be considered in determining the adequacy of a space to provide combustion air requirements. 507.2 Indoor Combustion Air. 507.2.1 Standard Method. 507.2.2 Known Air Infiltration Rate Method. 507.3 Indoor Opening Size and Location. 507.4 Outdoor Combustion Air. 507.4.1 Two Permanent Openings Method.
68	507.4.2 One Permanent Opening Method. 507.5 Combination Indoor and Outdoor Combustion Air. 507.5.1 Indoor Openings 507.5.2 Outdoor openings shall be located in accordance with Sections 507.4.1 or 507.4.2. 507.5.3 Outdoor Openings Size. 507.6 Engineered Installations. 507.7 Mechanical Combustion Air Supply. 507.7.1 Where exhaust fans are installed, additional air shall be provided to replace the exhausted air. 507.7.2 Each of the appliances served shall be interlocked to the mechanical air supply system to prevent main burner operation where the mechanical air supply system is not in operation. 507.7.3 Where combustion air is provided by the building’s mechanical ventilation system, the system shall provide the specified combustion air rate in addition to the required ventilation air. 507.8 Louvers, Grilles and Screens. 507.9 Combustion Air Ducts.
69	508.0 Other Water Heater Installation Requirements. 508.1 The Authority Having Jurisdiction shall have the authority to require the use of an approved dielectric insulator on the water piping connections of water heaters and related water heating appliances. 508.2 In seismic design categories C, D, E, and F, water heaters shall be anchored or strapped to resist horizontal displacement due to earthquake motion. 508.3 A water heater supported from the ground shall rest on level concrete or other approved base extending not less than three (3) inches (76 mm) above the adjoining ground level. 508.4 When a water heater is located in an attic, attic-ceiling assembly, floor-ceiling assembly, or floor-subfloor assembly where damage results from a leaking water heater, a water-tight pan of corrosion-resistant materials shall be installed beneath the water heater with not less than three-quarters (3/4) of an inch (20 mm) diameter drain to an approved location. 508.5 Relief Valve Discharge. 508.6 Added or Converted Appliances. 508.6.1 Air for combustion and ventilation is provided where required, in accordance with the provisions of Section 507.0. 508.6.2 The installation components and appliances meet the clearances to combustible material provisions of NFPA 54:9.2.2. 508.6.3 The venting system is constructed and sized in accordance with the provisions of this chapter. 508.7 Types of Gases. 508.8 Safety Shutoff Devices for Unlisted LP-Gas Appliance Used Indoors.
70	508.9 Use of Air or Oxygen Under Pressure. 508.10 Protection of Gas Appliances from Fumes or Gases Other than Products of Combustion. 508.11 Process Air. 508.12 Building Structural Members. 508.12.1 Structural members of a building shall not pass through gas utilization appliances having an operating temperature exceeding 500°F (260°C). 508.12.2 Structural members passing through gas utilization appliances having an operating temperature of 500°F (260°C) or less shall be of noncombustible material. 508.12.3 Gas utilization appliances shall be furnished either with load-distributing bases or with a sufficient number of supports to prevent damage to either the building structure or appliance. 508.12.4 At the locations selected for installation of the gas utilization appliance, the dynamic and static load-carrying capacities of the building structure shall be checked to determine whether they are adequate to carry the additional loads. 508.13 Flammable Vapors. 508.14 Installation in Residential Garages. 508.15 Installation in Commercial Garages. 508.15.1 Parking Structures. 508.15.2 Repair Garages.
71	508.16 Installation in Aircraft Hangars. 508.17 Gas Appliance Physical Protection. 508.18 Venting of Flue Gases. 508.19 Extra Device or Attachment. 508.20 Adequate Capacity of Piping. 508.21 Avoiding Strain on Gas Piping. 508.22 Gas Appliance Pressure Regulators 508.23 Venting of Gas Appliance Pressure Regulators. 508.23.1 Gas appliance pressure regulators requiring access to the atmosphere for successful operation shall be equipped with vent piping leading outdoors or, if the regulator vent is an integral part of the appliance, into the combustion chamber adjacent to a continuous pilot, unless constructed or equipped with a vent limiting means to limit the escape of gas from the vent opening in the event of diaphragm failure. 508.23.2 Vent limiting means shall be employed on listed gas appliance pressure regulators only. 508.23.3 In the case of vents leading outdoors, means shall be employed to prevent water from entering this piping and also to prevent blockage of vents by insects and foreign matter. 508.23.4 Under no circumstances shall a regulator be vented to the gas utilization appliance flue or exhaust system. 508.23.5 In the case of vents entering the combustion chamber, the vent shall be located so the escaping gas will be readily ignited by the pilot and the heat liberated thereby will not adversely affect the normal operation of the safety shutoff system. 508.23.6 Vent lines from a gas appliance pressure regulator and bleed lines from a diaphragm type valve shall not be connected to a common manifold terminating in a combustion chamber. 508.24 Bleed Lines for Diaphragm-Type Valves. 508.24.1 Diaphragm-type valves shall be equipped to convey bleed gas to the outside atmosphere or into the combustion chamber adjacent to a continuous pilot. 508.24.2 In the case of bleed lines leading outdoors, means shall be employed to prevent water from entering this piping and also to prevent blockage of vents by insects and foreign matter. 508.24.3 Bleed lines shall not terminate in the gas utilization appliance flue or exhaust system. 508.24.4 In the case of bleed lines entering the combustion chamber, the bleed line shall be located so the bleed gas will be readily ignited by the pilot and the heat liberated thereby will not adversely affect the normal operation of the safety shutoff system.
72	508.24.5 Bleed lines from a diaphragm-type valve and vent lines from a gas appliance pressure regulator shall not be connected to a common manifold terminating in a combustion chamber. 508.25 Combination of Appliances. 508.26 Installation Instructions. 508.27 Protection of Outdoor Appliances. 509.0 Appliances on Roofs. 509.1 General. 509.2 Installation of Appliances on Roofs. 509.3 Access to Appliances on Roofs. 509.3.1 Gas utilization appliances located on roofs or other elevated locations shall be accessible.
73	509.3.2 Buildings exceeding fifteen (15) feet (4.6 m) in height shall have an inside means of access to the roof, unless other means acceptable to the Authority Having Jurisdiction are used. 509.3.3 The inside means of access shall be a permanent, or fold-away inside stairway or ladder, terminating in an enclosure, scuttle, or trap door. 509.3.4 Permanent lighting shall be provided at the roof access. 509.4 Appliances in Attics. 509.4.1 Attic Access. 509.4.2 Where the height of the passageway is less than six (6) feet (1.8 m), the distance from the passageway access to the appliance shall not exceed twenty (20) feet (6.1 m) measured along the centerline of the passageway. 509.4.3 The passageway shall be unobstructed and shall have solid flooring not less than twenty four (24) inches (610 mm) wide from the entrance opening to the appliance. 509.4.4 Work Platform. 509.4.5 Lighting and Convenience Outlet. 510.0 Venting of Appliances. 510.1 General. 510.1.1 Categories. 510.1.2 Installation. 510.1.3 Appliance vents shall not discharge into any space enclosed by screens having openings less than one-fourth (1/4) inch (6.4 mm) mesh. 510.2 Specification for Venting. 510.2.1 Connection to Venting Systems. 510.2.2 Appliances Not Required to Be Vented. 510.2.2.1 Listed ranges. 510.2.2.2 Built-in domestic cooking units listed and marked for optional venting. 510.2.2.3 Listed hot plates and listed laundry stoves. 510.2.2.4 Listed Type 1 clothes dryers shall be exhausted to the outside air. 510.2.2.5 A single listed booster-type (automatic instantaneous) water heater, when designed and used solely for the sanitizing rinse requirements of a dish-washing machine, provided that the appliance is installed with the draft hood in place and unaltered if a draft hood is required, in a commercial kitchen having a mechanical exhaust system; where installed in this manner, the draft hood outlet shall be not less than thirty-six (36) inches (910 mm) vertically and six (6) inches (150 mm) horizontally from any surface other than the appliance.
74	510.2.2.6 Listed refrigerators. 510.2.2.7 Counter appliances. 510.2.2.8 Direct gas-fired makeup air heaters. 510.2.2.9 Other appliances listed for unvented use and not provided with flue collars. 510.2.2.10 Specialized appliance of limited input such as laboratory burners or gas lights. 510.2.3 Ventilating Hoods. 510.2.4 Well-Ventilated Spaces. 510.2.5 Direct-Vent Appliances. 510.2.6 Appliances with Integral Vents. 510.3 Design and Construction. 510.3.1 Minimum Safe Performance. 510.3.2 Appliance Draft Requirements. 510.3.3 Design and Construction. 510.3.4 Mechanical Draft Systems. 510.3.4.1 Mechanical draft systems shall be listed and shall be installed in accordance with the terms of their listing and both the appliance and the mechanical draft system manufacturer’s instructions. 510.3.4.2 Gas utilization appliances requiring venting shall be permitted to be vented by means of mechanical draft systems of either forced or induced draft design. 510.3.4.3 Forced draft systems and portions of induced draft systems under positive pressure during operation shall be designed and installed so as to prevent leakage of flue or vent gases into a building. 510.3.4.4 Vent connectors serving appliances vented by natural draft shall not be connected into any portion of mechanical draft systems operating under positive pressure. 510.3.4.5 Where a mechanical draft system is employed, provision shall be made to prevent the flow of gas to the main burners when the draft system is not performing so as to satisfy the operating requirements of the appliance for safe performance. 510.3.4.6 The exit terminals of mechanical draft systems shall be not less than seven (7) feet (2.1 m) above finished grade where located adjacent to public walkways and shall be located as specified in Sections 510.8.1 and 510.8.2 of this code.
75	510.3.5 Ventilating Hoods and Exhaust Systems. 510.3.5.1 Ventilating hoods and exhaust systems shall be permitted to be used to vent gas utilization appliances installed in commercial applications. 510.3.5.2 Where automatically operated appliances, other than commercial cooking appliances, are vented through a ventilating hood or exhaust system equipped with a damper or with a power means of exhaust, provisions shall be made to allow the flow of gas to the main burners only when the damper is open to a position to properly vent the appliance and when the power means of exhaust is in operation. 510.3.6 Circulating Air Ducts and Furnace Plenums. 510.4 Type of Venting System to Be Used. 510.4.1 The type of venting system to be used shall be in accordance with Table 5-2. 510.4.2 Plastic Piping. 510.4.3 Plastic Vent Joints. 510.4.4 Special Gas Vent. 510.5 Masonry, Metal, and Factory-Built Chimneys. 510.5.1 Listing or Construction. 510.5.1.1 Factory-built chimneys shall be installed in accordance with their listing and the manufacturer’s instructions. 510.5.1.2 Metal chimneys shall be built and installed in accordance with NFPA 211, Standard for Chimneys, Fireplaces, Vents, and Solid Fuel-Burning Appliances. 510.5.1.3 Masonry chimneys shall be built and installed in accordance with NFPA 211, Standard for Chimneys, Fireplaces, Vents, and Solid Fuel-Burning Appliances, and lined with approved clay flue lining, a listed chimney lining system, or other approved material that will resist corrosion, erosion, softening, or cracking from vent gases at temperatures up to 1,800°F (982°C). 510.5.2 Termination. 510.5.2.1 A chimney for a residential-type or low-heat gas utilization appliance shall extend at least three (3) feet (0.9 m) above the highest point where it passes through the roof of a building and at least two (2) feet (0.6 m) exceeding any portion of a building within a horizontal distance of ten (10) feet (3.0 m). 510.5.2.2 A chimney for a medium-heat appliance shall extend at least ten (10) feet (3.0 m) exceeding any portion of any building within twenty-five (25) feet (7.6 m). 510.5.2.3 A chimney shall extend at least five (5) feet (1.5 m) above the highest connected appliance draft hood outlet or flue collar. 510.5.2.4 Decorative shrouds shall not be installed at the termination of factory-built chimneys except where such shrouds are listed and labeled for use with the specific factory-built chimney system and are installed in accordance with manufacturer’s installation instructions. 510.5.3 Size of Chimneys.
76	510.5.4 Inspection of Chimneys. FIGURE 5-1 Typical Termination Locations for Chimneys and Single-Wall Metal Pipes Serving Residential-Type and Low-Heat Appliance
77	510.5.5 Chimney Serving Appliances Burning Other Fuels. 510.5.5.1 Gas utilization appliances shall not be connected to a chimney flue serving a separate appliance designed to burn solid fuel. 510.5.5.2 Where one (1) chimney serves gas utilization appliances and liquid fuel burning appliances, the appliance shall be connected through separate openings or shall be connected through a single opening where joined by a suitable fitting located as close as practical to the chimney. 510.5.5.3 A listed combination gas- and solid-fuel-burning appliance connected to a single chimney flue shall be equipped with a manual reset device to shut off gas to the main burner in the event of sustained backdraft or flue gas spillage. 510.5.5.4 A single chimney flue serving a listed combination gas- and oil-burning appliance shall be sized to properly vent the appliance. 510.5.6 Support of Chimneys. 510.5.7 Cleanouts. 510.5.8 Space Surrounding Lining or Vent. FIGURE 5-2 Gas Vent Termination Locations for Listed Caps 12 in. (300 mm) or Less in Size not less than 8 ft. (2.4 m) from a Vertical Wall FIGURE 5-3 Plan View of Practical Separation Method for Multistory Gas Venting.
78	510.5.8.1 The remaining space surrounding a chimney liner, gas vent, special gas vent, or plastic piping installed within a masonry 510.5.8.2 The remaining space surrounding a chimney liner, gas vent, special gas vent, or plastic piping installed within a masonry chimney flue shall not be used to supply combustion air. 510.6 Gas Vents. 510.6.1 A gas vent passing through a roof shall extend through the entire roof flashing, roof jack, or roof thimble and be terminated with a listed termination cap. 510.6.1.1 Type B or Type L vents shall extend in a generally vertical direction with offsets not exceeding 45 degrees, except that a vent system having not more than one 60 degree offset shall be permitted. 510.6.1.2 Screws, rivets and other fasteners shall not penetrate the inner wall of double wall gas vents. 510.6.2 A gas vent shall terminate in accordance with one of the following: TABLE 5-2 Type of Venting System to Be Used
79	510.6.2.1 A Type B or a Type L gas vent shall terminate at least five (5) feet (1.5 m) in vertical height above the highest connected appliance draft hood or flue collar. 510.6.2.2 A Type B-W gas vent shall terminate at least twelve (12) feet (3.7 m) in vertical height above the bottom of the wall furnace. 510.6.2.3 A gas vent extending through an exterior wall shall not terminate adjacent to the wall or below eaves or parapets, except as provided in Sections 510.2.5 and 510.3.4. 510.6.2.4 Decorative shrouds shall not be installed at the termination of gas vents except where such shrouds are listed for use with the specific gas venting system and are installed in accordance with manufacturer’s installation instructions. 510.6.2.5 Gas vents shall extend through the roof flashing, roof jack, or roof thimble and terminate with a listed cap or listed roof assembly. 510.6.2.6 A gas vent shall terminate at least three (3) feet (0.9 m) above a forced air inlet located within ten (10) feet (3.0 m). 510.6.3 Size of Gas Vents. TABLE 5-3 Clearance for Connectors
80	510.6.3.1 Category I Appliances. 510.6.3.2 Category II, Category III, and Category IV Appliances. 510.6.3.3 Sizing. 510.6.4 Gas Vents Serving Appliances on More Than One Floor. 510.6.4.1 A common gas vent shall be permitted in multistory installations to vent Category I gas utilization appliances located on more than one (1) floor level, provided the venting system is designed and installed in accordance with approved engineering methods. 510.6.4.2 Gas utilization appliances connected to the common vent shall be located in rooms separated from a habitable space. 510.6.5 Support of Gas Vents. 510.6.6 Marking.
81	TABLE 5-4 Reduction of Clearances with Specified Forms of Protection
82	510.7 Single-Wall Metal Pipe. 510.7.1 Construction. 510.7.2 Cold Climate. 510.7.3 Termination. TABLE 5-5 Minimum Thickness for Galvanized Steel Vent Connector for Low-Heat Appliances FIGURE 5-4 Extent of Protection Necessary to Reduce Clearances from Gas Appliances or Vent Connectors. FIGURE 5-5 Wall Protection Reduction System. FIGURE 5-6 Masonry Clearance Reduction System.
83	510.7.3.1 Single-wall metal pipe shall terminate at least five (5) feet (1.5 m) in vertical height above the highest connected appliance draft hood outlet or flue collar. 510.7.3.2 Single-wall metal pipe shall extend at least two (2) feet (0.6 m) above the highest point where it passes through the roof of a building and at least (2) feet (0.6 m) exceeding any portion of a building within a horizontal distance of ten (10) feet (3.1 m). 510.7.3.3 An approved cap or roof assembly shall be attached to the terminus of a single-wall metal pipe. 510.7.4 Installation with Appliances Permitted by 510.4.1. 510.7.4.1 Prohibited Use. 510.7.4.2 Single-wall metal pipe shall be used only for runs directly from the space in which the gas utilization appliance is located through the roof or exterior wall to the outer air. 510.7.4.3 Single-wall metal pipe shall not originate in any unoccupied attic or concealed space and shall not pass through any attic, inside wall, concealed space, or floor. 510.7.4.4 Single-wall metal pipe used for venting an incinerator shall be exposed and readily examinable for its full length and shall have suitable clearances maintained. 510.7.4.5 Minimum clearances from single-wall metal pipe to combustible material shall be in accordance with Table 5-3. 510.7.4.6 Single-wall metal pipe shall not pass through a combustible exterior wall unless guarded at the point of passage by a ventilated metal thimble not smaller than the following 510.7.4.7 Where a single-wall metal pipe passes through a roof constructed of combustible material, a noncombustible, nonventilating thimble shall be used at the point of passage. 510.7.5 Size of Single-Wall Metal Pipe. 510.7.5.1 A venting system of a single-wall metal pipe shall be sized in accordance with one of the following methods and the gas appliance manufacturer’s instructions
84	510.7.5.2 Where a single-wall metal pipe isused and has a shape other than round, it shall have an equivalent effective area equal to the effective area of the round pipe for which it is substituted, and the internal dimension of the pipe shall be at least two (2) inches (50 mm). 510.7.5.3 The vent cap or a roof assembly shall have a venting capacity at least that of the pipe to which it is attached. 510.7.6 Support of Single-Wall Metal Pipe. 510.7.7 Marking. 510.8 Through-the-Wall Vent Termination. 510.8.1 A mechanical draft venting system shall terminate at least three (3) feet (0.9 m) above any forced air inlet located within ten (10) feet (3.1 m). 510.8.2 A mechanical draft venting system of other than direct-vent type shall terminate at least four (4) feet (1.2 m) below, four (4) feet (1.2 m) horizontally from, or one (1) foot (300 mm) above any door, operable window, or gravity air inlet into any building. 510.8.3 The vent terminal of a direct-vent appliance with an input of 10,000 Btu/h (3 kW) or less shall be located at least (6) inches (150 mm) from any air opening into a building, and such an appliance with an input over 10,000 Btu/h (3 kW) but not over 50,000 Btu/h (14.7 kW) shall be installed with a nine (9) inch (230 mm) vent termination clearance, and an appliance with an input over 50,000 Btu/h (14.7 kW) shall have at least a twelve (12) inch (300 mm) vent termination clearance. 510.8.4 Through-the-wall vents for Category II and Category IV appliances and noncategorized condensing appliances shall not terminate over public walkways or over an area where condensate or vapor could create a nuisance or hazardor could be detrimental to the operation of regulators, relief valves, or other equipment. 510.8.5 Where vents, including those for direct vent appliances or combustion air intake pipes, penetrate outside walls of buildings, the annular spaces around such penetrations shall be permanently sealed using approved materials to prevent entry of combustion products into the building. 510.9 Condensation Drain. 510.9.1 Provision shall be made to collect and dispose of condensate from venting systems serving Category II and Category IV gas utilization appliances and noncategorized condensing appliances in accordance with Section 510.8.4. 510.9.2 Where local experience indicates that condensation is a problem, provision shall be made to drain off and dispose of condensate from venting systems serving Category I and Category III gas utilization appliances in accordance with 510.8.4. 510.10 Vent Connectors for Category I Gas Utilization Appliances. 510.10.1 Where Required. 510.10.2 Materials. 510.10.2.1 A vent connector shall be made of noncombustible, corrosion resistant material capable of withstanding the vent gas temperature produced by the gas utilization appliance and of sufficient thickness to withstand physical damage. 510.10.2.2 Where the vent connector used for gas utilization appliances having a draft hood or a Category I appliance is located in or passes through an unconditioned area, that portion of the vent connector shall be listed Type B, Type L, or listed vent material having equivalent insulation qualities.
85	510.10.2.3 Where the vent connector used for gas utilization appliances having a draft hood or a Category I appliance is located in or passes through attics and crawl spaces, that portion of the vent connector shall be listed Type B, Type L, or listed vent material having equivalent insulation qualities. 510.10.2.4 Vent connectors for residential type appliances shall comply with the following: 510.10.2.5 A vent connector for non-residential low-heat appliance shall be a factory-built chimney section or steel pipe having resistance to heat and corrosion equivalent to that for the appropriate galvanized pipe as specified in Table 5-5. 510.10.2.6 Vent connectors for medium heat appliances and commercial and industrial incinerators shall be constructed of factory-built, medium-heat chimney sections or steel of a thickness at least that specified in Table 5-6 and shall comply with the following: Table 5-6 Minimum Thickness for Steel Vent Connectors for Medium-Heat Appliances and Commercial and Industrial Incinerators
86	510.10.3 Size of Vent Connector. 510.10.3.1 A vent connector for gas utilization appliances with a single draft hood or for a Category I fan-assisted combustion system appliance shall be sized and installed in accordance with this chapter or other approved engineering methods. 510.10.3.2 For a single appliance having more than one (1) draft hood outlet or flue collar, the manifold shall be constructed according to the instructions of the appliance manufacturer. 510.10.3.3 Where two (2) or more gas appliances are connected to a common vent or chimney, each vent connector shall be sized in accordance with this chapter or other approved engineering methods. 510.10.3.4 Where two (2) or more gas appliances are vented through a common vent connector or vent manifold, the common vent connector or vent manifold shall be located at the highest level consistent with available head-room and clearance to combustible material and shall be sized in accordance with this chapter or other approved engineering methods. 510.10.3.5 Where the size of a vent connector is increased to overcome installation limitations and obtain connector capacity equal to the appliance input, the size increase shall be made at the appliance draft hood outlet. 510.10.4 Two or More Appliances Connected to a Single Vent. 510.10.4.1 Where two (2) or more openings are provided into one (1) chimney flue or vent, the openings shall either be at different levels, or the connectors shall be attached to the vertical portion of the chimney or vent at an angle of 45 degrees or less relative to the vertical. 510.10.4.2 Where two (2) or more vent connectors enter a common gas vent, chimney flue, or single-wall metal pipe, the smaller connector shall enter at the highest level consistent with the available headroom or clearance to combustible material. 510.10.4.3 Vent connectors serving Category I appliances shall not be connected to any portion of a mechanical draft system operating under positive static pressure, such as those serving Category III or Category IV appliances. 510.10.5 Clearance. 510.10.6 Avoid Unnecessary Bends. 510.10.7 Joints. 510.10.8 Slope.
87	510.10.9 Length of Vent Connector. 510.10.9.1 A vent connector shall be as short as practical and the gas utilization appliance located as close as practical to the chimney or vent. 510.10.9.2 The maximum horizontal length of a single-wall connector shall be 75 percent of the height of the chimney or vent except for engineered systems. 510.10.9.3 The maximum horizontal length of a Type B double-wall connector shall be 100 percent of the height of the chimney or vent, except for engineered systems. 510.10.10 Support. 510.10.11 Chimney Connection. 510.10.12 Inspection. 510.10.13 Fireplaces. 510.10.14 Passage through Ceilings, Floors, or Walls. 510.10.14.1 A vent connector shall not pass through any ceiling, floor, or fire-resistance rated wall. 510.10.14.2 Vent connectors for medium-heat appliances shall not pass through walls or partitions constructed of combustible material. 510.11 Vent Connectors for Category II, Category III, and Category IV Gas Utilization Appliances. 510.12 Draft Hoods and Draft Controls. 510.12.1 Appliances Requiring Draft Hoods. 510.12.2 Installation. 510.12.3 Draft-Control Devices.
88	510.12.4 Additional Devices. 510.12.5 Location. 510.12.6 Positioning. 510.12.7 Clearance. 510.13 Manually Operated Dampers. 510.14 Automatically Operated Vent Dampers. 510.15 Obstructions. 511.0 Sizing of Category I Venting Systems. 511.1 These venting tables shall not be used where obstructions (see Section 510.15) are installed in the venting system. 511.1.1 Where the vent size determined from the tables is smaller than the appliance draft hood outlet or flue collar, the use of the smaller size shall be permitted provided that the installation complies with the following requirements.
89	511.1.2 Elbows. 511.1.3 Zero (0) lateral (L) shall apply only to a straight vertical vent attached to a top outlet draft hood or flue collar. 511.1.4 Sea level input ratings shall be used when determining maximum capacity for high altitude installation. 511.1.5 For appliances with more than one (1) input rate, the minimum vent capacity (FAN Min) determined from the tables shall be less than the lowest appliance input rating, and the maximum vent capacity (FAN Max/NAT Max) determined from the tables shall exceed the highest appliance rating input. 511.1.6 Listed corrugated metallic chimney liner systems in masonry chimneys shall be sized by using Tables 5-8 or 5-9 for Type B vents with the maximum capacity reduced by 20 percent (0.80 maximum capacity) and the minimum capacity as shown in Tables 5-8 or 5-9. 511.1.7 Connection to Chimney Liners. 511.1.8 Vertical Vent Upsizing 7 x Rule. 511.1.9 Draft Hood Conversion Accessories. 511.1.10 Tables 5-8 through 5-12 shall be used for chimneys and vents not exposed to the outdoors below the roof line. 511.1.11 Corrugated vent connectors shall not be smaller than the listed appliance categorized vent diameter, flue collar diameter, or draft hood outlet diameter. 511.1.12 Vent connectors shall not be upsized more than two (2) sizes exceeding the listed appliance categorized vent diameter, flue collar diameter, or draft hood outlet diameter.
90	511.1.13 In a single run of vent or vent connector, more than one (1) diameter and type shall be permitted to be used, provided that the sizes and types are permitted by the tables. 511.1.14 Interpolation shall be permitted in calculating capacities for vent dimensions that fall between table entries. 511.1.15 Extrapolation beyond the table entries shall not be permitted. 511.1.16 For vent heights lower than six (6) feet and exceeding vent heights shown in the tables, engineering methods shall be used to calculate vent capacities. 511.2 Additional Requirements to Multiple Appliance Vent Table 5-14 through Table 5-22. 511.2.1 Obstructions and Vent Damper. 511.2.2 The vent connector horizontal lengthshall be eighteen (18) inches/inch (18 mm/mm) of connector diameter as shown in Table 5-7. 511.2.3 The vent connector shall be routed to the vent utilizing the shortest possible route. TABLE 5-7 Vent Connector Maximum Length
91	511.2.4 Where the vent connectors are combined prior to entering the vertical portion of the common vent to form a common vent manifold, the size of the common vent manifold and the common vent shall be determined by applying a 10 percent reduction (.90 x maximum common vent capacity) to the Common Vent Capacity part of the common vent tables. 511.2.5 Vent Offset. 511.2.6 For each elbow up to and including 45 degrees in the common vent, the maximum common vent capacity listed in the venting tables shall be reduced by 5 percent. 511.2.7 Common Vent Minimum Size. 511.2.8 Tee and Wye Fittings. 511.2.9 At the point where tee or wye fittings connect to a common vent, the opening size of the fitting shall be equal to the size of the common vent. 511.2.10 Sea level input ratings shall be used when determining maximum capacity for high altitude installation. 511.2.11 The connector rise (R) for each appliance connector shall be measured from the draft hood outlet or flue collar to the centerline where the vent gas streams come together. 511.2.12 For multiple units of gas utilization appliances located on one (1) floor, available total height (H) shall be measured from the highest draft hood outlet or flue collar up to the level of the outlet of the common vent. 511.2.13 For multistory installations, available total height (H) for each segment of the system shall be the vertical distance between the highest draft hood outlet or flue collar entering that segment and the centerline of the next higher interconnection tee. 511.2.14 The size of the lowest connector and of the vertical vent leading to the lowest interconnection of a multistory system shall be in accordance with Tables 5-8 or 5-9 for available total height (H) up to the lowest interconnection. 511.2.15 Where used in multistory systems, vertical common vents shall be Type B doublewall and shall be installed with a listed vent cap. 511.2.16 Offsets in multistory common vent systems shall be limited to a single offset in each system, and systems with an offset shall comply with all of the following: 511.2.17 Where two (2) or more appliances are connected to a vertical vent or chimney, the flow area of the largest section of vertical vent or chimney shall not exceed seven (7) times the smallest listed appliance categorized vent areas, flue collar area, or draft hood outlet area unless designed in accordance with approved engineering methods.
92	511.2.18 For appliances with more than one (1) input rate, the minimum vent connector capacity (FAN Min) determined from the tables shall be less than the lowest appliance input rating, and the maximum vent connector capacity (FAN Max or NAT Max) determined from the table shall exceed the highest appliance input rating. 511.2.19 Listed corrugated metallic chimney liner systems in masonry chimneys shall be sized by using Tables 5-14 or 5-15 for Type B vents, with the maximum capacity reduced by 20 percent (0.80 maximum capacity) and the minimum capacity as shown in Tables 5-14 or 5-15. 511.2.20 Tables 5-14 and 5-15 shall be used for chimneys and vents not exposed to the outdoors below the roof line. 511.2.21 Vent connectors shall not be increased more than two (2) sizes exceeding the listed appliance categorized vent diameter, flue collar diameter, or draft hood outlet diameter. 511.2.22 Combinations of pipe sizes, singlewall, and double-wall metal pipe shall be allowed within any connector run or within the common vent, provided ALL of the appropriate tables permit ALL of the desired sizes and types of pipe, as if they were used for the entire length of the subject connector or vent. FIGURE 5-7 Combustion Air from Adjacent Indoor Spaces through Indoor Combustion Air Openings.
93	511.2.23 Where a table permits more than one (1) diameter of pipe to be used for a connector or vent, all the permitted sizes shall be permitted to be used. 511.2.24 Interpolation shall be permitted in calculating capacities for vent dimensions that fall between table entries. 511.2.25 Extrapolation beyond the table entries shall not be permitted. 511.2.26 For vent heights lower than six (6) feet and exceeding vent heights shown in the tables, engineering methods shall be used to calculate vent capacities. 512.0 Direct-Vent Appliances.
94	FIGURE 5-8 All Combustion Air from Outdoors. Inlet Air from Ventilated Crawl Space and Outlet Air to Ventilated Attic. FIGURE 5-9 All Combustion Air from Outdoors through Ventilated Attic. FIGURE 5-10 All Combustion Air from Outdoors through Horizontal Ducts. FIGURE 5-11 All Combustion Air from Outdoors through Single Combustion Air Opening.
95	FIGURE 5-12 Exit Terminals of Mechanical Draft and Direct-Vent Venting Systems. FIGURE 5-13 Range of Winter Design Temperatures Used in Analyzing Exterior Masonry Chimneys in the United States.
96	Table 5-8 Type B Double-Wall Gas Vent
99	Table 5-9 Type B Double-Wall Gas Vent
101	Table 5-10 Masonry Chimney
103	Table 5-11 Masonry Chimney
105	Table 5-12 Single-Wall Metal Pipe or Type B Asbestos Cement Vent
106	Table 5-13 Exterior Masonry Chimney
107	Table 5-14 Type B Double-Wall Vent
111	Table 5-15 Type B Double-Wall Vent
113	Table 5-16 Masonry Chimney
115	Table 5-17 Masonry Chimney
117	Table 5-18 Single-Wall Metal Pipe or Type B Asbestos Cement Vent Table 5-19 Exterior Masonry Chimney
118	Table 5-20 Exterior Masonry Chimney
119	Table 5-21 Exterior Masonry Chimney
120	Table 5-22 Exterior Masonry Chimney
121	PART II G.1 Examples Using Single Appliance Venting Tables. FIGURE G.1(a) Type B Double-Wall Vent System Serving a Single Appliance with a Type B Double-Wall Vent. FIGURE G.1(b) Type B Double-Wall Vent System Serving a Single Appliance with a Single-Wall Metal Vent Connector. FIGURE G.1(c) Vent System Serving a Single Appliance with a Masonry Chimney and a Type B Double-Wall Vent Connector. FIGURE G.1(d) Vent System Serving a Single Appliance Using a Masonry Chimney and a Single-Wall Metal Vent Connector.
122	FIGURE G.1(e) Asbestos Cement Type B or Single-Wall Metal Vent System Serving a Single Draft-Hood-Equipped Appliance. FIGURE G.1(f) Vent System Serving Two or More Appliances with Type B Double-Wall Vent and Type B Double-Wall Vent Connectors. FIGURE G.1(g) Vent System Serving Two or More Appliances with Type B Double-Wall Vent and Single-Wall Metal Vent Connectors. FIGURE G.1(h) Masonry Chimney Serving Two or More Appliances with Type B Double-Wall Vent Connectors.
123	FIGURE G.1(i) Masonry Chimney Serving Two or More Appliances with Single-Wall Metal Vent Connectors. FIGURE G.1.(j) Asbestos Cement Type B or Single-Wall Metal Vent System Serving Two or More Draft-Hood-Equipped Appliances. FIGURE G.1(k) Use of Manifolded Common Vent Connector FIGURE G.1.(l) Use of Offset Common Vent.
124	G.1.1 Example 1: Single Draft-Hood-Equipped Appliance. G.1.2. Example 2: Single Fan-Assisted Appliance. FIGURE G.1.(m) Multistory Gas Vent Design Procedure for Each Segment of System. FIGURE G.1.(n) Principles of Design of Multistory Vents Using Vent Connector and Common Vent Design Tables.
125	G.1.3. Example 3: Interpolating Between Table Values. G.2 Examples Using Common Venting Tables. G.2.1 Example 4: Common Venting Two Draft-Hood-Equipped Appliances. FIGURE G.1.1 Single Draft Hood-Equipped Appliance – Exampe 1. FIGURE G.1.2 Single Fan-Assisted Appliance – Example 2. FIGURE G.2.1. Common Venting Two Draft Hood-Equipped Appliances – Example 4.
126	G.2.2 Example 5 (a): Common Venting a Draft-Hood-Equipped Water Heater with a Fan-Assisted Furnace into a Type B Vent. TABLE G.2.3 Masonry Chimney Liner Dimensions with Circular Equivalents FIGURE G.2.2 Common Venting a Draft Hood-Equipped Water Heater with a Fan-Assisted Furnace into a Type B Double-Wall Common Vent – Example 5(a).
127	G.2.3 Example 5 (b):
128	G.2.4 Example 5 (c): Common Venting into an Exterior Masonry Chimney. J.1 Example of Combination Indoor and Outdoor Combustion Air Opening.
129	TABLE A.9.3.2.1 Standard Method Volume, All Appliances
130	Chapter 6 Water Supply and Distribution 601.0 Hot and Cold Water Required. 601.1 Except where not deemed necessary for safety or sanitation by the Authority Having Jurisdiction, each plumbing fixture shall be provided with an adequate supply of potable running water piped thereto in an approved manner, so arranged as to flush and keep it in a clean and sanitary condition without danger of backflow or cross-connection. 601.2 Identification of a Potable and Nonpotable Water System. 601.2.1 Potable Water. 601.2.2 Color and Information. 601.2.3 Fixtures. 601.2.4 Outlets. 601.3 Faucets and diverters shall be connected to the water distribution system so that hot water corresponds to the left side of the fittings. 602.0 Unlawful Connections. 602.1 No installation of potable water supply piping or part thereof shall be made in such a manner that it will be possible for used, unclean, polluted, or contaminated water, mixtures, or substances to enter any portion of such piping from any tank, receptor, equipment, or plumbing fixture by reason of back-siphonage, suction, or any other cause, either during normal use and operation thereof, or when any such tank, receptor, equipment, or plumbing fixture is flooded or subject to pressure exceeding the operating pressure in the hot or cold water piping. 602.2 No person shall make a connection or allow one (1) to exist between pipes or conduits carrying domestic water supplied by any public or private water service system, and any pipes, conduits, or fixtures containing or carrying water from any other source or containing or carrying water that has been used for any purpose whatsoever, or any piping carrying chemicals, liquids, gases, or any substances whatsoever, unless there is provided a backflow prevention device approved for the potential hazard and maintained in accordance with this code. TABLES TABLE 6-1 Minimum Length of Color Field and Size of Letters
131	TABLE 6-2 Backflow Prevention Devices, Assemblies and Methods
133	602.3 No plumbing fixture, device, or construction shall be installed or maintained or shall be connected to any domestic water supply when such installation or connection provides a possibility of polluting such water supply or cross-connection between a distributing system of water for drinking and domestic purposes and water that becomes contaminated by such plumbing fixture, device, or construction unless there is provided a backflow prevention device approved for the potential hazard. 602.4 No water piping supplied by any private water supply system shall be connected to any other source of supply without the approval of the Authority Having Jurisdiction, Health Department, or other department having jurisdiction. 603.0 Cross-Connection Control. 603.1 Approval of Devices or Assemblies. TABLE 6-3 Minimum Airgaps for Water Distribution
134	603.2 Backflow Prevention Devices, Assemblies, and Methods. 603.2.1 Airgap. 603.2.2 Atmospheric Vacuum Breaker (AVB). 603.2.3 Hose Connection Backflow Preventer. 603.2.4 Double Check Valve Backflow Prevention Assembly (DC). 603.2.5 Pressure Vacuum Breaker Backflow Prevention Assembly (PVB). 603.2.6 Pressure Vacuum Breaker Spill-Resistant-Type Backflow Prevention Assembly (SVB). 603.2.7 Reduced-Pressure Principle Backflow Prevention Assembly (RP). 603.3 General Requirements. 603.3.1 Assemblies shall conform to listed standards and be acceptable to the Authority Having Jurisdiction, with jurisdiction over the selection and installation of backflow prevention assemblies 603.3.2 Where more than one (1) backflow prevention valve is installed on a single premise, and the valves are installed in one (1) location, each separate valve shall be permanently identified by the permittee in a manner satisfactory to the Authority Having Jurisdiction. 603.3.3 The premise owner or responsible person shall have the backflow prevention assembly tested by a certified backflow assembly tester at the time of installation, repair, or relocation and not less than on an annual schedule thereafter, or more often when required by the Authority Having Jurisdiction. 603.3.4 Access and clearance shall be provided for the required testing, maintenance, and repair. 603.3.5 Direct connections between potablewater piping and sewer-connected wastes shall not be permitted to exist under any condition with or without backflow protection. 603.3.6 Backflow preventers for hot water exceeding 110°F (43.3°C) shall be a type designed to operate at temperatures exceeding 110°F (43.3°C) without rendering any portion of the assembly inoperative. 603.3.7 Fixtures, appliances, or appurtenances with integral backflow preventers or integral airgaps manufactured as a unit shall be installed in accordance with their listing requirements and the manufacturer’s instructions.
135	603.3.8 In cold climate areas, backflow assemblies and devices shall be protected from freezing with an outdoor enclosure or by a method acceptable to the Authority Having Jurisdiction. 603.3.9 Drain lines serving backflow devices or assemblies shall be sized in accordance with the discharge rates of the manufacturer’s flow charts of such devices or assemblies. 603.3.10 Design and Installation of Plumbing Fixtures. 603.4 Specific Requirements. 603.4.1 Water closet and urinal flushometer valves shall be equipped with an atmospheric vacuum breaker. 603.4.2 Water closet and urinal tanks shall be equipped with a ballcock. 603.4.3 Water closet flushometer tanks shall be protected against backflow by an approved backflow prevention assembly, device, or method. 603.4.4 Heat Exchangers. 603.4.4.1 Heat exchangers used for heat transfer, heat recovery, or solar heating shall protect the potable water system from being contaminated by the heat-transfer medium. 603.4.5 Water supply inlets to tanks, vats, sumps, swimming pools, and other receptors shall be protected by one of the following means: 603.4.6 Protection from Lawn Sprinklers and Irrigation Systems. 603.4.6.1 Potable water supplies to systems having no pumps or connections for pumping equipment, and no chemical injection or provisions for chemical injection, shall be protected from backflow by one of the following devices: 603.4.6.2 Where sprinkler and irrigation systems have pumps, connections for pumping equipment, or auxiliary air tanks, or are otherwise capable of creating backpressure, the potable water supply shall be protected by the following type of device if the backflow device is located upstream from the source of back-pressure: 603.4.6.3 Where systems have a backflow device installed downstream from a potable water supply pump or a potable water supply pump connection, the device shall be one of the following: 603.4.6.4 Where systems include a chemical injector or any provisions for chemical injection, the potable water supply shall be protected by the following: 603.4.7 Potable water outlets with hose attachments, other than water heater drains, boiler drains, and clothes washer connections, shall be protected by a nonremovable hose-bibb-type backflow preventer, a nonremovable hose-bibb type-vacuum breaker, or by an atmospheric vacuum breaker installed not less than six (6) inches (152 mm) above the highest point of usage located on the discharge side of the last valve.
136	603.4.8 Water-cooled compressors, degreasers, or any other water-cooled equipment shall be protected by a backflow preventer installed in accordance with the requirements of this chapter. 603.4.9 Water inlets to water-supplied aspirators shall be equipped with a vacuum breaker installed in accordance with its listing requirements and this chapter. 603.4.10 Potable water makeup connections to steam or hot water boilers shall be provided with a listed backflow protection assembly. 603.4.11 Nonpotable Water Piping. 603.4.12 Potable water supply to carbonators shall be protected by either an airgap or a vented backflow preventer for carbonated beverage dispensers installed within the carbonated beverage dispenser. 603.4.13 Water Treatment Units. 603.4.14 Backflow preventers shall not be located in any area containing fumes that are toxic, poisonous, or corrosive. 603.4.15 Deck-mounted or equipment-mounted vacuum breakers shall be installed in accordance with their listing and the manufacturer’s instructions, with the critical level not less than one (1) inch (25.4 mm) above the flood-level rim. 603.4.16 Protection from Fire Systems. 603.4.16.1 Except as provided under Sections 603.4.16.2 and 603.4.16.3, potable water supplies to fire protection systems that are normally under pressure, including but not limited to stand pipes and automatics prinkler systems, except in one- or two family residential sprinkler systems, piped in materials approved for potable water distribution systems shall be protected from back-pressure and back-siphonage by one of the following testable devices: 603.4.16.2 Where fire protection systems supplied from a potable water system include a fire department (siamese) connection that is located less than seventeen hundred (1,700) feet (518 m) from a nonpotable water source that could be used by the fire department as a secondary water supply, the potable water supply shall be protected by one of the following: 603.4.16.3 Where antifreeze, corrosion inhibitors, or other chemicals are added to a fire protection system supplied from a potable water supply, the potable water system shall be protected by one of the following:
137	603.4.16.4 Whenever a backflow device is installed in the potable water supply to a fire protection system, the hydraulic design of the system shall account for the pressure drop through the backflow device. 603.4.16.5 Residential Sprinkler Systems. 603.4.17 Special Equipment, Water Supply Protection. 603.4.18 Portable cleaning equipment, dental vacuum pumps, and chemical dispensers shall be protected from backflow by an airgap, anatmospheric vacuum breaker, a spill-resistant vacuum breaker, or a reduced pressure principle backflow preventer. 603.4.19 Combination stop-and-waste valves or cocks shall not be installed underground. 603.4.20 Pure Water Process Systems. 603.4.20.1 Dialysis Water Systems. 603.4.21 Plumbing Fixture Fittings. 603.4.22 Potable water supply to swimming pools, spas and hot tubs shall be protected by an airgap or a reduced pressure principle backflow preventer in accordance with the following: 604.0 Materials. 604.1 Pipe, tube, and fittings carrying water used in potable water systems intended to supply drinking water shall meet the requirements of NSF 61 as found in Table 14-1. 604.2 Copper tube for water piping shall have a weight of not less than Type L. 604.3 Hard-drawn copper tubing for water supply and distribution in addition to the required incised marking, shall be marked in accordance with ASTM B 88 Seamless Copper Water Tube as referenced in Table 14-1. 604.4 Listed flexible copper water connectors shall be installed in readily accessible locations, unless otherwise listed. 604.5 Cast-iron fittings up to and including two (2) inches (51 mm) in size, when used in connection with potable water piping, shall be galvanized. 604.6 Malleable iron water fittings shall be galvanized. 604.7 Piping and tubing that has previously been used for any purpose other than for potable water systems shall not be used. 604.8 Approved plastic materials shall be permitted to be used in water service piping, provided that where metal water service piping is used for electrical grounding purposes, replacement piping therefore shall be of like materials.
138	604.9 Solder shall conform to the requirements of Section 316.1.3. 604.10 Water pipe and fittings with a lead content which exceeds eight (8) percent shall be prohibited in piping systems used to convey potable water. 604.11 PEX. 604.11.1 PEX Fittings. 604.11.2 Water Heater Connections. 604.12 Flexible Corrugated Connectors. 604.13 PEX-AL-PEX and PE-AL-PE. TABLE 6-4 Materials for Building Supply and Water Distribution Piping and Fittings
139	604.13.1 PEX-AL-PEX and PE-AL-PE. 604.13.2 Water Heater Connections. 604.14 Water Heater Connectors. 605.0 Valves. 605.1 Valves up to and including two (2) inches (51 mm) in size shall be brass or other approved material. 605.2 A fullway valve controlling outlets shall be installed on the discharge side of each water meter and on each unmetered water supply. 605.3 In multidwelling units, one (1) or more shutoff valves shall be provided in each dwelling unit so that the water supply to any plumbing fixture or group of fixtures in that dwelling unit can be shut off without stopping water supply to fixtures in other dwelling units. 605.4 Valves used to control two (2) or more openings shall be fullway gate valves, ball valves, or other approved valves designed and approved for the service intended. 605.5 A control valve shall be installed immediately ahead of each water-supplied appliance and immediately ahead of each slip joint or appliance supply. 605.6 Required shutoff or control valves shall be accessible. 605.7 A single control valve shall be installed on a water supply line ahead of any automatic metering valve that supplies a battery of fixtures. 606.0 Joints and Connections. 606.1 Types of Joints. 606.1.1 Flared Joints. 606.1.2 Mechanical Joints. 606.1.3 Mechanically Formed Tee Fittings. 606.2 Use of Joints. 606.2.1 Copper Water Tube.
140	606.2.2 Plastic Fittings. 606.2.3 Slip Joints. 607.0 Gravity Supply Tanks. 608.0 Water Pressure, Pressure Regulators, Pressure Relief Valves, and Vacuum Relief Valves. 608.1 Inadequate Water Pressure. 608.2 Excessive Water Pressure. 608.3 Any water system provided with a check valve, backflow preventer, or any other normally closed device that prevents dissipation of building pressure back into the water main shall be provided with an approved, listed, and adequately sized expansion tank or other approved device having a similar function to control thermal expansion. 608.4 Each pressure relief valve shall be an approved automatic type with drain, and each such relief valve shall be set at a pressure of not more than one-hundred and fifty (150) pounds per square inch (1,034 kPa). 608.5 Relief valves located inside a building shall be provided with a drain, not smaller than the relief valve outlet, of galvanized steel, hard-drawn copper piping and fittings, CPVC or listed relief valve drain tube with fittings that will not reduce the internal bore of the pipe or tubing (straight lengths as opposed to coils) and shall extend from the valve to the outside of the building, with the end of the pipe not more than two (2) feet (610 mm) nor less than six (6) inches (152 mm) above ground or the flood level of the area receiving the discharge and pointing downward.
141	608.6 Any water-heating device connected to a separate storage tank and having valves between said heater and tank shall be provided with an approved water pressure relief valve. 608.7 Vacuum Relief Valves. 609.0 Installation, Testing, Unions, and Location. 609.1 Installation. 609.2 Water pipes shall not be run or laid in the same trench as building sewer or drainage piping constructed of clay or materials that are not approved for use within a building unless both of the following conditions are met: 609.2.1 The bottom of the water pipe, at all points, shall be not less than twelve (12) inches (305 mm) above the top of the sewer or drainline. 609.2.2 The water pipe shall be placed on a solid shelf excavated at one (1) side of the common trench with a clear horizontal distance of not less than twelve (12) inches (305 mm) from the sewer or drain line 609.3 Water piping installed within a building and in or under a concrete floor slab resting on the ground shall be installed in accordance with the following requirements: 609.3.1 Ferrous piping shall have a protective coating of an approved type, machine applied and conforming to recognized standards. 609.3.2 Copper tubing shall be installed without joints where possible. 609.4 Testing. 609.5 Unions. 609.6 Location. 609.7 Nothing contained in this code shall be construed to prohibit the use of all or part of an abutting lot to: 609.7.1 Provide access to connect a building supply to an available public water service when proper cause and legal easement not inviolation of other requirements have been first established to the satisfaction of the Authority Having Jurisdiction.
142	609.7.2 Provide additional space for a building supply when proper cause, transfer of ownership, or change of boundary not in violation of other requirements have been first established to the satisfaction of the Authority Having Jurisdiction. 609.8 Low-Pressure Cutoff Required on Booster Pumps for Water Distribution Systems. 609.9 Disinfection of Potable Water System. 609.9.1 The pipe system shall be flushed with clean, potable water until only potable water appears at the points of outlet. 609.9.2 The system or parts thereof shall be filled with a water-chlorine solution containing not less than fifty (50) parts per million of chlorine, and the system or part thereof shall be valved-off and allowed to stand for twenty-four (24) hours; or, the system or part thereof shall be filled with a water-chlorine solution containing not less than two-hundred (200) parts per million of chlorine and allowed to stand for three (3) hours. 609.9.3 Following the allowed standing time, the system shall be flushed with clean, potable water until the chlorine residual in the water coming from the system does not exceed the chlorine residual in the flushing water. 609.9.4 The procedure shall be repeated if it is shown by bacteriological examination made by an approved agency that contamination persists in the system. 609.10 Water Hammer. 609.10.1 Mechanical Devices. 610.0 Size of Potable Water Piping. 610.1 The size of each water meter and each potable water supply pipe from the meter or other source of supply to the fixture supply branches, risers, fixtures, connections, outlets, or other uses shall be based on the total demand and shall be determined according to the methods and procedures outlined in this section. 610.2 Whenever a water filter, water softener, backflow prevention device or similar device is installed in any water supply line, the pressure loss through such devices shall be included in the pressure loss calculations of the system, and the water supply pipe and meter shall be adequately sized to provide for any such pressure loss. 610.3 The quantity of water required to be supplied to every plumbing fixture shall be represented by fixture units, as shown in Table 6-5.
143	610.4 Systems within the range of Table 6-6 shall be permitted to be sized from that table or by the method set forth in Section 610.5. 610.5 Except as provided in Section 610.4, the size of each water piping system shall be determined in accordance with the procedure set forth in Appendix A. 610.6 Except where the type of pipe used and the water characteristics are such that no decrease in capacity due to length of service (age of system) is expected, friction-loss data shall be obtained from the “Fairly Rough” or “Rough” charts in Appendix A of this code. 610.7 On any proposed water piping installation sized using Table 6-6, the following conditions shall be determined: 610.8 Size of Meter and Building Supply Pipe Using Table 6-6. 610.9 Size of Branches. 610.10 Sizing for Flushometer Valves.
144	610.11 Sizing Systems for Flushometer Tanks. 610.12 Sizing for Velocity. 610.12.1 Copper Tube Systems. 610.12.2 Tubing Systems Using Copper Alloy Fittings. 610.13 Exceptions. 611.0 Drinking Water Treatment Units. 611.1 Compliance with Standard. 611.2 Airgap Discharge. 611.3 Connection Tubing. 611.4 Sizing of Residential Softeners.
145	TABLE 6-5 Water Supply Fixture Units (WSFU) and Minimum Fixture Branch Pipe Sizes
146	TABLE 6-6 Fixture Unit Table for Determining Water Pipe and Meter Sizes
147	Table 6-7 Flushometer Fixture Units for Water Sizing Using Table 6-5 TABLE 6-8 Sizing of Residential Water Softeners
148	Chapter 7 Sanitary Drainage Part I – Drainage Systems. 701.0 Materials. 701.1 Materials for drainage piping shall be in accordance with one of the referenced standards in Table 7–1 except that: 701.1.1 No galvanized wrought-iron or galvanized steel pipe shall be used underground and shall be kept not less than six (6) inches (152 mm) above ground. 701.1.2 ABS and PVC DWV piping installations shall be installed in accordance with applicable standards referenced in Table 14-1 and Chapter 15 “Firestop Protection.” 701.1.3 No vitrified clay pipe or fittings shall be used above ground or where pressurized by a pump or ejector. 701.1.4 Copper tube for drainage and vent piping shall have a weight of not less than that of copper drainage tube type DWV. 701.1.5 Stainless steel 304 pipe and fittings shall not be installed underground and shall be kept not less than six (6) inches (152 mm) above ground. 701.1.6 Cast-iron soil pipe and fittings shall be listed and tested to comply with standards referenced in Table 14-1. 701.2 Materials for drainage fittings shall be in accordance with the applicable standards referenced in Table 7-1 of the same diameter as the piping served, and such fittings shall be compatible with the type of pipe used. 701.2.1 Fittings on screwed pipe shall be of the recessed drainage type. 701.2.2 The threads of drainage fittings shall be tapped so as to allow one-fourth (1/4) inch per foot (20.8 mm/m) grade. 701.2.3 Fittings used for drainage shall be of the drainage type, have a smooth interior water way,and be constructed so as to allow one fourth (1/4) inch per foot (20.8 mm/m) grade. 701.3 Lead. 701.4 Ferrules and Bushings. 701.4.1 Caulking ferrules shall be manufactured from bronze or copper and shall be in accordance with Table 7-2 (a). 701.4.2 Soldering bushings shall be of bronze or copper in accordance with Table 7-2(b). TABLES TABLE 7-2(a) Caulking Ferrules TABLE 7-2(b) Soldering Bushings
149	TABLE 7-1 Materials for Drain, Waste, Vent Pipe and Fittings
150	702.0 Fixture Unit Equivalents. 702.1 The unit equivalent of plumbing fixtures shown in Table 7-3 shall be based on the size of the trap required, and the unit equivalent of fixtures and devices not shown in Table 7-3 shall be based on the size of trap or trap arm. 702.2 Drainage fixture units for intermittent flow into the drainage system shall be computed on the rated discharge capacity in gpm (gallons per minute) (liters per second) in accordance with Table 7–4. 702.3 For a continuous flow into a drainage system, such as from a pump, sump ejector, air conditioning equipment, or similar device, two (2) fixture units shall be allowed for each gallon per minute (3.78L/m) of flow. 703.0 Size of Drainage Piping. 703.1 The minimum sizes of vertical and/or horizontal drainage piping shall be determined from the total of fixture units connected thereto, and additionally, in the case of vertical drainage pipes, in accordance with their length. 703.2 Table 7-5 shows the maximum number of fixture units allowed on any vertical or horizontal drainage pipe, building drain, or building sewer of a given size; the maximum number of fixture units allowed on any branch interval of a given size; and the maximum length (in feet and meters) of any vertical drainage pipe of a given size. 703.3 For alternate method of sizing drainage piping, see Appendix L. 704.0 Fixture Connections (Drainage). 704.1 Drainage piping shall be provided with approved inlet fittings for fixture connections, correctly located according to the size and type of fixture proposed to be connected. 704.2 Two (2) fixtures set back-to-back, or side-by side, within the distance allowed between a trap and its vent shall be permitted to be served by a single vertical drainage pipe provided that each fixture wastes separately into an approved double-fixture fitting having inlet openings at the same level. 704.3 Pot sinks, scullery sinks, dishwashing sinks, silverware sinks, commercial dishwashing machines, silverware-washing machines, and other similar fixtures shall be connected directly to the drainage system. 705.0 Joints and Connections. 705.1 Types of Joints. 705.1.1 Caulked Joints. 705.1.2 Cement Mortar Joints. 705.1.3 Burned Lead Joints. 705.1.4 Asbestos Cement Sewer Pipe Joints. TABLE 7-4 Discharge Capacity in Gallons per Minute (Liters per Second)
151	TABLE 7-3 Drainage Fixture Unit Values (DFU)
152	705.1.5 Packing Additives Prohibited. 705.1.6 Molded Rubber Coupling Joints. 705.1.7 Elastomeric Gasketed and Rubber-Ring Joints. 705.1.8 Shielded Coupling Joints. 705.1.9 Hubless Cast-Iron Pipe Joints. 705.2 Use of Joints. 705.2.1 Clay and Sewer Pipe. 705.2.2 Cast-Iron Pipe. 705.2.3 Screw Pipe to Cast-Iron. 705.2.4 Lead to Cast-Iron, Wrought-Iron, or Steel. TABLE 7-5 Maximum Unit Loading and Maximum Length of Drainage and Vent Piping
153	705.3 Special Joints. 705.3.1 Slip Joints. 705.3.2 Expansion Joints. 705.3.3 Ground Joint, Flared, or Ferrule Connections. 706.0 Changes in Direction of Drainage Flow. 706.1 Changes in direction of drainage piping shall be made by the appropriate use of approved fittings and shall be of the angles presented by a one sixteenth (1/16) bend, one-eighth (1/8) bend, or one sixth (1/6) bend, or other approved fittings of equivalent sweep. 706.2 Horizontal drainage lines, connecting with a vertical stack, shall enter through 45 degree (0.79 rad) wye branches, 60 degree (1.05 rad) wye branches, combination wye and one-eighth (1/8) bend branches, sanitary tee or sanitary tapped tee branches, or other approved fittings of equivalent sweep. 706.3 Horizontal drainage lines connecting with other horizontal drainage lines shall enter through 45 degree (0.79 rad) wye branches, combination wye and one-eighth (1/8) bend branches, or other approved fittings of equivalent sweep. 706.4 Vertical drainage lines connecting with horizontal drainage lines shall enter through 45 degree (0.79 rad) wye branches, combination wye and one eighth(1/8) bend branches, or other approved fittings of equivalent sweep. 707.0 Cleanouts. 707.1 Each cleanout fitting for cast-iron pipe shall consist of a cast-iron or brass body and an approved plug. 707.2 Each cleanout fitting and each cleanout plug or cap shall be of an approved type. 707.3 Cleanouts shall be designed to be gas and water-tight. 707.4 Each horizontal drainage pipe shall be provided with a cleanout at its upper terminal, and each run of piping, that is more than one-hundred (100) feet (30,480 mm) in total developed length, shall be provided with a cleanout for each one-hundred (100) feet (30,480 mm), or fraction thereof, in length of such piping. 707.5 Each cleanout shall be installed so that it opens to allow cleaning in the direction of flow of the soil or waste or at right angles thereto and, except in the case of wye branch and end-of-line cleanouts, shall be installed vertically above the flow line of the pipe. 707.6 Each cleanout extension shall be considered as drainage piping and each 90 degree (1.6 rad) cleanout extension shall be extended from a wye type fitting or other approved fitting of equivalent sweep. 707.7 Each cleanout for an interceptor shall be outside of such interceptor.
154	707.8 Each cleanout, unless installed under an approved cover plate, shall be above grade, readily accessible, and so located as to serve the purpose for which it is intended. 707.9 Each cleanout in piping two (2) inches (50 mm) or less in size shall be so installed that there is a clearance of not less than twelve (12) inches (305 mm) in front of the cleanout. 707.10 Cleanout fittings shall be not less in size than those given in Table 7-6. 707.11 Cleanouts shall be provided for pressure drainage systems as classified under Section 710.7. 707.12 Countersunk cleanout plugs shall be installed where raised heads cause a hazard. 707.13 When a hubless blind plug is used for a required cleanout, the complete coupling and plug shall be accessible for removal or replacement. 707.14 Cleanouts for trap arms shall be installed in accordance with Section 1002.3. 708.0 Grade of Horizontal Drainage Piping. 709.0 Gravity Drainage Required. 710.0 Drainage of Fixtures Located Below the Next Upstream Manhole or Below the Main Sewer Level. 710.1 Where a fixture is installed on a floor level that is lower than the next upstream manhole cover of the public or private sewer, serving such drainage piping, shall be protected from backflow of sewage by installing an approved type of backwater valve. 710.2 Drainage piping serving fixtures that are located below the crown level of the main sewer shall discharge into an approved water-tight sumpor receiving tank, so located as to receive the sewage or wastes by gravity. 710.3 A sewage ejector or sewage pump receiving the discharge of water closets or urinals: 710.3.1 Shall have a discharge capacity of not less than 20 gallons per minute (75.7 L/m). 710.3.2 In single dwelling units, the ejector or pump shall be capable of passing a one and one half (1-1/2) inch (38 mm) diameter solid ball, and the discharge piping of each ejector or pump shall have a backwater valve and gate valve, and be not less than of two (2) inches (50 mm) in diameter. TABLE 7-6 Cleanouts
155	710.3.3 In other than single-dwelling units, the ejector or pump shall be capable of passing a two (2) inch (51 mm) diameter solid ball, and the discharge piping of each ejector or pump shall have a backwater valve and gate valve, and be not less than three (3) inches (80 mm) in diameter. 710.4 The discharge line from such ejector, pump, or other mechanical device shall be provided with an accessible backwater or swing check valve and gate or ball valve. 710.5 Building drains or building sewers receiving discharge from any pump or ejector shall be adequately sized to prevent overloading. 710.6 Backwater valves, gate valves, fullway ball valves, unions, motors, compressors, air tanks, and other mechanical devices required by this section shall be located where they will be accessible for inspection and repair at all times and, unless continuously exposed, shall be enclosed in a masonry pit fitted with an adequately sized removable cover. 710.7 The drainage and venting systems, in connection with fixtures, sumps, receiving tanks, and mechanical waste-lifting devices, shall be installed under the same requirements as provided for in this code for gravity systems. 710.8 Sumps and receiving tanks shall be water-tight and shall be constructed of concrete, metal, or other approved materials. 710.9 Such sumps and receiving tanks shall be automatically discharged and, when in any “public use” occupancy, shall be provided with dual pumps or ejectors arranged to function alternately in normal use and independently in case of overload or mechanical failure. 710.10 Sumps and receiving tanks shall be provided with substantial covers having a bolt-and-gasket-type manhole or equivalent opening to permit access for inspection, repairs, and cleaning. 710.11 Air tanks shall be so proportioned as to be of equal cubical capacity to the ejectors connected there within which there shall be maintained an air pressure of not less than two (2) pounds for each foot (3 kg for each m) of height the sewage is to be raised. 710.12 Grinder Pump Ejector. 710.12.1 Discharge Piping. 710.13 Macerating Toilet Systems.
156	710.13.1 Sumps. 710.13.2 Discharge Piping. 710.13.3 Venting. 711.0 Suds Relief. 712.0 Testing. 712.1 Media. 712.2 Water Test. 712.3 Air Test. Part II – Building Sewers. 713.0 Sewer Required. 713.1 Every building in which plumbing fixtures are installed and every premises having drainage piping thereon shall have a connection to a public or private sewer, except as provided in Sections 101.4.1.3, 713.2, and 713.4. 713.2 When no public sewer intended to serve any lot or premises is available in any thoroughfare or right of way abutting such lot or premises, drainage piping from any building or works shall be connected to an approved private sewage disposal system. 713.3 Within the limits prescribed by Section 713.4 hereof, the rearrangement or subdivision into smaller parcels of a lot that abuts and is served by a public sewer shall not be deemed cause to permit the construction of a private sewage disposal system, and plumbing or drainage systems on any such smaller parcel or parcels shall connect to the public sewer. 713.4 The public sewer shall be permitted to be considered as not being available when such public sewer or any building or any exterior drainage facility connected thereto is located more than two-hundred (200) feet (61 m) from any proposed building or exterior drainage facility on any lot or premises that abuts and is served by such public sewer. 713.5 No permit shall be issued for the installation, alteration, or repair of any private sewage disposal system, or part thereof, on any lot for which a connection with a public sewer is available.
157	713.6 On every lot or premises hereafter connected to a public sewer, all plumbing and drainage systems or parts thereof on such lot or premises shall be connected with such public sewer. 714.0 Damage to Public Sewer or Private Sewage Disposal System. 714.1 It shall be unlawful for any person to deposit, by any means whatsoever, into any plumbing fixture, floor drain, interceptor, sump, receptor, or device which is connected to any drainage system, public sewer, private sewer, septic tank, or cesspool, any ashes; cinders; solids; rags; flammable, poisonous, or explosive liquids or gases; oils; grease; and any other thing whatsoever that would or could cause damage to the public sewer, private sewer, or private sewage disposal system. 714.2 No rain, surface, or subsurface water shall be connected to or discharged into any drainage system, unless first approved by the Authority Having Jurisdiction. 714.3 No cesspool, septic tank, seepage pit, or drain field shall be connected to any public sewer or to any building sewer leading to such public sewer. 714.4 The Authority Having Jurisdiction shall review before approval, the installation of a commercial food waste grinder connecting to a private sewage disposal system. 714.5 An approved-type water-tight sewage or wastewater holding tank, the contents of which, due to their character, must be periodically removed and disposed of at some approved off-site location, shall be installed only when required by the Authority Having Jurisdiction or the Health Officer to prevent anticipated surface or subsurface contamination or pollution, damage to the public sewer, or other hazardous or nuisance conditions. 715.0 Building Sewer Materials. 715.1 The building sewer, beginning two (2) feet (610 mm) from any building or structure, shall be of such materials as prescribed in this code. 715.2 Joining methods and materials shall be as prescribed in this code. 715.3 Replacement of existing building sewer and building storm sewers using trenchless methodology and materials shall be installed in accordance with IAPMO IS-26. 716.0 Markings. 717.0 Size of Building Sewers. 718.0 Grade, Support, and Protection of Building Sewers. 718.1 Building sewers shall be run in practical alignment and at a uniform slope of not less than one fourth (1/4) of an inch per foot (20.8 mm/m) toward the point of disposal. 718.2 Building sewer piping shall be laid on a firm bed throughout its entire length, and any such piping laid in made or filled-in ground shall be laid on a bed of approved materials and shall be properly supported as required by the Authority Having Jurisdiction. 718.3 No building sewer or other drainage piping or part thereof, which is constructed of materials other than those approved for use under or within a building, shall be installed under or within two (2) feet (610 mm) of any building or structure, or part thereof, nor less than one (1) foot (305 mm) below the surface of the ground.
158	719.0 Cleanouts. 719.1 Cleanouts shall be placed inside the building near the connection between the building drain and the building sewer or installed outside the building at the lower end of the building drain and extended to grade. 719.2 When a building sewer or a branch thereof does not exceed ten (10) feet (3,048 mm) in length and is a straight-line projection from a building drain that is provided with a cleanout, no cleanout will be required at its point of connection to the building drain. 719.3 Required building sewer cleanouts shall be extended to grade and shall comply with the appropriate sections of Cleanouts, Section 707.0, for sizing, construction, and materials. 719.4 Each cleanout shall be installed so that it opens to allow cleaning in the direction of flow of the soil or waste or at right angles thereto and, except in the case of wye branch and end-of-line cleanouts, shall be installed vertically above the flow line of the pipe. 719.5 Cleanouts installed under concrete or asphalt paving shall be made accessible by yard boxes or by extending flush with paving with approved materials and shall be adequately protected. 719.6 Approved manholes shall be permitted to be installed in lieu of cleanouts, when first approved by the Authority Having Jurisdiction. 720.0 Sewer and Water Pipes. 721.0 Location. 721.1 Except as provided in Section 721.2, no building sewer shall be located in any lot other than the lot that is the site of the building or structure served by such sewer nor shall any building sewerbe located at any point having less than the minimum distances indicated in Table 7-7. 721.2 Nothing contained in this code shall be construed to prohibit the use of all or part of an abutting lot to:
159	722.0 Abandoned Sewers and Sewage Disposal Facilities. 722.1 Every abandoned building (house) sewer, or part thereof, shall be plugged or capped in an approved manner within five (5) feet (1,524 mm) of the property line. 722.2 Every cesspool, septic tank, and seepage pit that has been abandoned or has been discontinued otherwise from further use, or to which no waste or soil pipe from a plumbing fixture is connected, shall have the sewage removed therefrom and be completely filled with earth, sand, gravel, concrete, or other approved material. 722.3 The top cover or arch over the cesspool, septic tank, or seepage pit shall be removed before filling, and the filling shall not extend above the top of the vertical portions of the sidewalls or above the level of any outlet pipe until inspection has been called and the cesspool, septic tank, or seepage pit has been inspected. 722.4 No person owning or controlling any cesspool, septic tank, or seepage pit on the premises of such person or in that portion of any public street, alley, or other public property abutting such premises, shall fail, refuse, or neglect to comply with the provisions of this section or upon receipt of notice so to comply from the Authority Having Jurisdiction. 722.5 Where disposal facilities are abandoned consequent to connecting any premises with the public sewer, the permittee making the connection shall fill abandoned facilities as required by the Authority Having Jurisdiction within thirty (30) days from the time of connecting to the public sewer. TABLE 7-7 Minimum Horizontal Distance Required From Building Sewer TABLE 7-8 Maximum/Minimum Fixture Unit Loading on Building Sewer Piping
160	723.0 Building Sewer Test.
162	Chapter 8 Indirect Wastes 801.0 Indirect Wastes. 801.1 Airgap or Airbreak Required. 801.2 Food and Beverage Handling Establishments. 801.2.1 Except for refrigeration coils and ice-making machines, the size of the indirect waste pipe shall not be smaller than the drain on the unit, but shall not be smaller than one (1) inch (25 mm), and the maximum developed length shall not exceed fifteen (15) feet (4,572 mm). 801.2.2 For walk-in coolers, floor drains shall be permitted to be connected to a separate drainage line discharging into an outside receptor. 801.2.3 Food-preparation sinks, steam kettles, potato peelers, ice cream dipper wells, and similar equipment shall be indirectly connected to the drainage system by means of an airgap. 801.3 Bar and Fountain Sink Traps. 801.4 Connections from Water Distribution System. 801.5 Sterilizers. 801.6 Drip or Drainage Outlets. 802.0 Approvals. 803.0 Indirect Waste Piping. TABLES
163	804.0 Indirect Waste Receptors. 804.1 Plumbing fixtures or other receptors receiving the discharge of indirect waste pipes shall be approved for the use proposed and shall be of such shape and capacity as to prevent splashing or flooding and shall be located where they are readily accessible for inspection and cleaning. 804.2 Where water service connections are installed for a clothes washer, an approved method of waste disposal shall be provided. 805.0 Pressure Drainage Connections. 806.0 Sterile Equipment. 807.0 Appliances. 807.1 Appliances, devices, equipment, or other apparatus not regularly classed as plumbing fixtures, which are equipped with pumps, drips, or drainage outlets, shall be permitted to be drained by indirect waste pipes discharging into an approved type of open receptor. 807.2 When the condensate waste from air-conditioning coils discharges by direct connection to a lavatory tailpiece or to an approved accessible inlet on a bathtub overflow, the connection shall be located in the area controlled by the same person controlling the air-conditioned space. 807.3 When undiluted condensate waste from a fuel-burning condensing appliance is discharged into the drainage system, the material in the drainage system shall be cast-iron, galvanized iron, plastic, or other materials approved for this use. 807.4 No domestic dishwashing machine shall be directly connected to a drainage system or food waste disposer without the use of an approved dishwasher airgap fitting on the discharge side of the dishwashing machine. 808.0 Cooling Water.
164	809.0 Drinking Fountains. 810.0 Steam and Hot Water Drainage Condensers and Sumps. 810.1 No steam pipe shall be directly connected to any part of a plumbing or drainage system, nor shall any water having a temperature above 140°F (60°C) be discharged under pressure directly into any part of a drainage system. 810.2 Sumps, condensers, or intercepting tanks that are constructed of concrete shall have walls and bottom not less than four (4) inches (102 mm) in thickness, and the inside shall be cement plastered not less than one-half (1/2) inch (12.7 mm) in thickness. 810.3 Sumps and condensers shall be provided with suitable means of access for cleaning and shall contain a volume of not less than twice the volume of water removed from the boiler or boilers connected thereto when the normal water level of such boiler or boilers is reduced not less than four (4) inches (102 mm). 810.4 Strainers. 811.0 Chemical Wastes. 811.1 Chemical or industrial liquid wastes that are likely to damage or increase maintenance costs on the sanitary sewer system, detrimentally affect sewage treatment, or contaminate surface or subsurface waters shall be pretreated to render them innocuous prior to discharge into a drainage system. 811.2 Each waste pipe receiving or intended to receive the discharge of any fixture into which acid or corrosive chemical is placed, and each vent pipe connected thereto, shall be constructed of Chlorinated Poly (vinyl-chloride) (CPVC), Polypropylene (PP), Polyvinylidene Fluoride (PVDF), chemical-resistant glass, high-silicon iron pipe, or lead pipe with a wall thickness of not less than one-eighth (1/8) inch (3.2 mm); an approved type of ceramic glazed or unglazed vitrified clay; or other approved corrosion-resistant materials. 811.3 Joining materials shall be of approved type and quality. 811.4 Wherever practicable, piping shall be readily accessible and installed with the maximum of clearance from other services. TABLE 8-1 Pipe Connections in Blowoff Condensers and Sumps
165	811.5 The owner shall make and keep a permanent record of the location of piping and venting carrying chemical waste. 811.6 No chemical vent shall intersect vents for other services. 811.7 Chemical wastes shall be discharged in a manner approved by the Authority Having Jurisdiction. 811.8 The provisions in this section relative to materials and methods of construction shall not apply to installations such as photographic or X-ray darkrooms or research or control laboratories where minor amounts of adequately diluted chemicals are discharged. 812.0 Clear Water Wastes. 813.0 Swimming Pools. 814.0 Condensate Wastes and Control. 814.1 Condensate Disposal. 814.2 Size. 814.3 Point of Discharge. TABLE 8-2 Minimum Condensate Pipe Size
166	Chapter 9 Vents 901.0 General. 901.1 Vents Required. 901.2 Trap Seal Protection. 902.0 Vents Not Required. 902.1 Vent piping shall be permitted to be omitted on an interceptor when such interceptor acts as a primary settling tank and discharges through a horizontal indirect waste pipe into a secondary interceptor. 902.2 Traps serving sinks that are part of the equipment of bars, soda fountains, and counters need not be vented when the location and construction of such bars, soda fountains, and counters is such as to make it impossible to do so. 903.0 Materials. 903.1 Vent pipe and fittings shall be in accordance with the applicable standards referenced in Table 7-1, except that: 903.1.1 No galvanized steel or 304 stainless steel pipe shall be installed underground and shall be not less than six (6) inches (152 mm) above ground. 903.1.2 ABS and PVC DWV piping installations shall be in accordance with the applicable standards referenced in Table 14-1, and Chapter 15 “Firestop Protection.” 903.2 Use of Copper Tubing. 903.2.1 Copper tube for underground drainage and vent piping shall have a weight of not less than that of copper drainage tube type DWV. 903.2.2 Copper tube for above ground drainage and vent piping shall have a weight of not less than that of copper drainage tube type DWV. 903.2.3 Copper tube shall not be used for chemical or industrial wastes as defined in Section 811.0. 903.2.4 Hard-drawn copper tubing, in addition to the required incised marking, shall be marked in accordance with either ASTM B306, Copper Drainage Tube (DWV), or ASTM B88 Seamless Copper Water Tube as listed in Table 14-1. 903.3 Changes in direction of vent piping shall be made by the appropriate use of approved fittings, and no such pipe shall be strained or bent. 904.0 Size of Vents. 904.1 The size of vent piping shall be determined from its length and the total number of fixture units connected thereto, as set forth in Table 7-5.
167	904.2 No more than one-third (1/3) of the total permitted length, per Table 7-5, of any minimum sized vent shall be installed in a horizontal position. 905.0 Vent Pipe Grades and Connections. 905.1 Vent and branch vent pipes shall be free from drops or sags, and each such vent shall be level or shall be so graded and connected as to drip back by gravity to the drainage pipe it serves. 905.2 Where vents connect to a horizontal drainage pipe, each vent pipe shall have its invert taken off above the drainage centerline of such pipe downstream of the trap being served. 905.3 Unless prohibited by structural conditions, each vent shall rise vertically to a point not less than six (6) inches (152 mm) above the flood-level rim of the fixture served before offsetting horizontally, and whenever two (2) or more vent pipes converge, each such vent pipe shall rise to a point not less than six (6) inches (152 mm) in height above the flood-level rim of the plumbing fixture it serves before being connected to any other vent. 905.4 Vent pipes shall extend undiminished in size above the roof, or shall be reconnected with a soil or waste vent of proper size. 905.5 The vent pipe opening from a soil or waste pipe, except for water closets and similar fixtures, shall not be below the weir of the trap. 905.6 Two (2) fixtures shall be permitted to be served by a common vertical pipe when each such fixture wastes separately into an approved double fitting having inlet openings at the same level. 906.0 Vent Termination. 906.1 Each vent pipe or stack shall extend through its flashing and shall terminate vertically not less than six (6) inches (152 mm) above the roof nor less than one (1) foot (305 mm) from any vertical surface. 906.2 Each vent shall terminate not less than ten (10) feet (3,048 mm) from, or not less than three (3) feet (914 mm) above, any openable window, door, opening, air intake, or vent shaft, or not less than three (3) feet (914 mm) in every direction from any lot line, alley and street excepted. 906.3 Vent pipes shall be extended separately or combined, of full required size, not less than six (6) inches (152 mm) above the roof or fire wall. 906.4 Vent pipes for outdoor installations shall extend not less than ten (10) feet (3,048 mm) above the surrounding ground and shall be securely supported. 906.5 Joints at the roof around vent pipes shall be made water-tight by the use of approved flashings or flashing material. 906.6 Lead. 906.7 Frost or Snow Closure. 907.0 Vent Stacks and Relief Vents. 907.1 Each drainage stack that extends ten (10) or more stories above the building drain or other horizontal drain, shall be served by a parallel vent stack, which shall extend undiminished in size from its upper terminal and connect to the drainage stack at or immediately below the lowest fixture drain. 907.2 The yoke vent connection to the vent stack shall be placed not less than forty-two (42) inches (1,067 mm) above the floor level, and the yoke vent connection to the drainage stack shall be by means of a wye-branch fitting placed below the lowest drainage branch connection serving that floor.
168	908.0 Wet Venting. 908.1 Vertical Wet Venting. 908.1.1 Where Permitted. 908.1.2 Size. 908.1.3 Vent Connection. 908.2 Horizontal Wet Venting for Bathroom Groups. 908.2.1 Where Permitted. 908.2.2 Vent Connection. 908.2.3 Size. 909.0 Special Venting for Island Fixtures. 910.0 Combination Waste and Vent Systems. 910.1 Combination waste and vent systems shall be permitted only where structural conditions preclude the installation of conventional systems as otherwise prescribed by this code. 910.2 Plans and specifications for each combination waste and vent system shall first be approved by the Authority Having Jurisdiction before any portion of any such system is installed.
169	910.3 Each combination waste and vent system, as defined in Chapter 2, shall be provided with a vent or vents adequate to ensure free circulation of air. 910.4 Each waste pipe and each trap in any such system shall be not less than two (2) pipe sizes exceeding the sizes required by Chapter 7 of this code, and not less than two (2) pipe sizes exceeding any fixture tailpiece or connection. 910.5 No vertical waste pipe shall be used in any such system, except the tailpiece or connection between the outlet of a plumbing fixture and the trap. 910.6 An accessible cleanout shall be installed in each vent for the combination waste and vent system. 910.7 No water closet or urinal shall be installed on any such system. 911.0 Engineered Vent System. 911.1 General. 911.2 Minimum Requirements.
170	Chapter 10 Traps and Interceptors 1001.0 Traps Required. 1001.1 Each plumbing fixture, excepting those having integral traps or as permitted in Section 1001.2, shall be separately trapped by an approved type of water seal trap. 1001.2 One (1) trap shall be permitted to serve a set of not more than three (3) single compartment sinks or laundry tubs of the same depth or three (3) lavatories immediately adjacent to each other and in the same room if the waste outlets are not more than thirty (30) inches (762 mm) apart and the trap is centrally located when three (3) compartments are installed. 1001.3 No food waste disposal unit shall be installed with any set of restaurant, commercial, or industrial sinks served by a single trap; each such food waste disposal unit shall be connected to a separate trap. 1001.4 The vertical distance between a fixture outlet and the trap weir shall be as short as practicable, but in no case shall the tailpiece from any fixture exceed twenty-four (24) inches (610 mm) in length. 1002.0 Traps Protected by Vent Pipes. 1002.1 Each plumbing fixture trap, except as otherwise provided in this code, shall be protected against siphonage, back-pressure, and air circulation shall be assured throughout all parts of the drainage system by means of a vent pipe installed in accordance with the requirements of this code. 1002.2 Each fixture trap shall have a protecting vent so located that the developed length of the trap arm from the trap weir to the inner edge of the vent shall be within the distance given in Table 10-1, but in no case less than two (2) times the diameter of the trap arm. 1002.3 A trap arm shall be permitted to change direction without the use of a cleanout when such change of direction does not exceed 90 degrees (1.6 rad). 1002.4 The vent pipe opening from a soil or waste pipe, except for water closets and similar fixtures, shall not be below the weir of the trap. 1003.0 Traps — Described. 1003.1 Each trap, except for traps within an interceptor or similar device shall be self-cleaning. TABLES Table 10-1 Horizontal lengths of Trap Arms
171	1003.2 A maximum of one (1) approved slip joint fitting shall be permitted to be used on the outlet side of a trap, and no tubing trap shall be installed without a listed tubing trap adapter. 1003.3 The size (nominal diameter) of a trap for a given fixture shall be sufficient to drain the fixture rapidly, but in no case less than nor more than one (1) pipe size larger than given in Table 7-3. 1004.0 Traps — Prohibited. 1004.1 Bladders, check valves or any other type of devices with moveable parts shall be prohibited to serve as a trap. 1005.0 Trap Seals. 1006.0 Floor Drain Traps. 1007.0 Trap Seal Protection. 1008.0 Building Traps. 1009.0 Industrial Interceptors (Clarifiers) and Separators. 1009.1 When Required. 1009.2 Approval. 1009.3 Design. 1009.4 Relief Vent. 1009.5 Location. 1009.6 Maintenance of Interceptors.
172	1009.7 Discharge. 1010.0 Slaughterhouses, Packing Establishments,etc. 1011.0 Minimum Requirements for Auto Wash Racks. 1012.0 Commercial and Industrial Laundries. 1013.0 Bottling Establishments. 1014.0 Grease Interceptors. 1014.1 Where it is determined by the Authority Having Jurisdiction that waste pretreatment is required, an approved type of grease interceptor(s) complying with the provisions of this section shall be correctly sized and properly installed in grease wasteline(s) leading from sinks and drains, such as floor drains, floor sinks and other fixtures or equipment in serving establishments such as restaurants, cafes, lunch counters, cafeterias, bars and clubs, hotels, hospitals, sanitariums, factory or school kitchens, or other establishments where grease is introduced into the drainage or sewage system in quantities that can effect line stoppage or hinder sewage treatment or private sewage disposal. 1014.1.1 Each fixture discharging into a grease interceptor shall be individually trapped and vented in an approved manner. 1014.1.2 All grease interceptors shall be maintainedin efficient operating condition by periodic removal of the accumulated grease and latent material. 1014.1.3 Food Waste Disposal Units and Dishwashers. 1014.2 Hydromechanical Grease Interceptors. 1014.2.1 Plumbing fixtures or equipment connected to a Type A and B hydromechanical grease interceptor shall discharge through an approved type of vented flow control installed in a readily accessible and visible location.
173	1014.2.2 The total capacity in gallons (L) of fixtures discharging into any hydromechanical grease interceptor shall not exceed two and one half (2-1/2) times the certified GPM (L/m) flow rate of the interceptor as per Table 10-2. 1014.2.3 A vent shall be installed downstream of hydromechanical grease interceptors in accordance with the requirements of this code. 1014.3 Gravity Grease Interceptors. 1014.3.1 General. 1014.3.2 Waste Discharge Requirements. 1014.3.2.1 Waste discharge in establishments from fixtures and equipment which contain grease, including but not limited to, scullery sinks, pot and pan sinks, dishwashers, soup kettles, and floor drains located in areas where grease-containing materials exist, shall be permitted to be drained into the sanitary waste through the interceptor when approved by the Authority Having Jurisdiction. Table 10–2 Hydro-mechanical Interceptor Sizing Using Gravity Flow Rates
174	1014.3.2.2 Toilets, urinals, and other similar fixtures shall not drain through the interceptor. 1014.3.2.3 All waste shall enter the interceptor through the inlet pipe only. 1014.3.3 Design. 1014.3.3.1 Gravity Interceptors shall be constructed in accordance with the applicable standard in Table 14-1 or the design approved by the Authority Having Jurisdiction. 1014.3.4 Location. 1014.3.4.1 Each grease interceptor shall be so installed and connected that it shall be at all times easily accessible for inspection, cleaning, and removal of the intercepted grease. 1014.3.4.2 Interceptors shall be placed as close as practical to the fixtures they serve. 1014.3.4.3 Each business establishment for which a gravity grease interceptor is required shall have an interceptor which shall serve only that establishment unless otherwise approved by the Authority Having Jurisdiction. 1014.3.4.4 Each gravity grease interceptor shall be located so as to be readily accessible to the equipment required for maintenance. 1014.3.5 Construction Requirements. 1014.3.5.1 Purpose. 1014.3.6 Sizing Criteria. 1014.3.6.1 Sizing. 1014.3.7 Abandoned Gravity Grease Interceptors. 1015.0 FOG (Fats, Oils, and Greases) Disposal System. 1015.1 Purpose. Table 10-3 Gravity Grease Interceptor Sizing
175	1015.2 Scope. 1015.3 Components, Materials, and Equipment. 1015.4 Sizing Application and Installation. 1015.5 Performance. 1016.0 Sand Interceptors. 1016.1 Where Required. 1016.1.1 Whenever the discharge of a fixture or drain contain solids or semi-solids heavier than water that would be harmful to a drainage system or cause a stoppage within the system, the discharge shall be through a sand interceptor. 1016.1.2 Sand interceptors are required whenever the Authority Having Jurisdiction deems it advisable to have a sand interceptor to protect the drainage system. 1016.2 Construction and Size. 1016.3 Separate Use. 1017.0 Oil and Flammable Liquid Interceptors. 1017.1 Interceptors Required.
176	1017.2 Design of Interceptors.
178	Chapter 11 Storm Drainage 1101.0 General. 1101.1 Where Required. 1101.2 Storm Water Drainage to Sanitary Sewer Prohibited. 1101.3 Material Uses. 1101.4 Expansion Joints Required. 1101.5 Subsoil Drains. 1101.5.1 Subsoil drains shall be provided around the perimeter of buildings having basements, cellars, crawl spaces or floors below grade. 1101.5.2 Subsoil drains shall be piped to a storm drain, to an approved water course, to the front street curb or gutter, to an alley, or the discharge from the subsoil drains shall be conveyed to the alley by a concrete gutter. 1101.5.3 Where it is not possible to convey the drainage by gravity, subsoil drains shall discharge to an accessible sump provided with an approved automatic electric pump. 1101.5.4 For separate dwellings not serving continuously flowing springs or ground water, the sump discharge pipe shall be permitted to discharge onto a concrete splash block with a minimum length of twenty-four (24) inches (610 mm). 1101.5.5 Subsoil drains subject to backflow when discharging into a storm drain shall be provided with a backwater valve in the drainline so located as to be accessible for inspection and maintenance. 1101.5.6 Nothing in Section 1101.5 shall prevent drains that serve either subsoil drains or areaways of a detached building from discharging to a properly graded open area, provided that: TABLES
179	1101.6 Building Subdrains. 1101.7 Areaway Drains. 1101.8 Window Areaway Drains. 1101.9 Filling Stations and Motor Vehicle Washing Establishments. 1101.10 Paved Areas. 1101.11 Roof Drainage. 1101.11.1 Primary Roof Drainage. 1101.11.2 Secondary Drainage. 1101.11.2.1 Roof Scuppers or Open Side. 1101.11.2.2 Secondary Roof Drain. 1101.11.2.2.1 Separate Piping System. 1101.11.2.2.2 Combined System.
180	1101.12 Cleanouts. 1101.12.1 Cleanouts for building storm drains shall comply with the requirements of Section 719.0 of this code. 1101.12.2 Rain leaders and conductors connected to a building storm sewer shall have a cleanout installed at the base of the outside leader or outside conductor before it connects to the horizontal drain. 1101.13 Rainwater sumps serving “public use” occupancy buildings shall be provided with dual pumps arranged to function alternately in case of overload or mechanical failure. 1102.0 Materials. 1102.1 Conductors. 1102.1.1 Conductors installed above ground in buildings shall be in accordance with the applicable standards referenced in Table 7-1 for above ground drain, waste and vent pipe. 1102.1.2 The inside of conductors installed above ground level shall be of seamless copper water tube, Type K, L, or M; Schedule 40 copper pipe or Schedule 40 copper alloy pipe; Type DWV copper drainage tube; service weight cast-iron soil pipe or hubless cast-iron soil pipe; standard weight galvanized steel pipe; stainless steel 304 or 316 L (stainless steel 304 pipe and fittings shall not be installed underground and shall be kept not less than (6) inches (152 mm) above ground); or Schedule 40 ABS or Schedule 40 PVC plastic pipe. 1102.2 Leaders. 1102.2.1 Leaders installed outside shall be in accordance with the applicable standards referenced in Table 7-1 for above ground drain, waste and vent pipe; aluminum sheet metal; galvanized steel sheet metal; or copper sheet metal. 1102.3 Underground Building Storm Drains. 1102.4 Building Storm Sewers. 1102.5 Subsoil Drains. 1102.5.1 Subsoil drains shall be constructed of materials specified in Table 14-1. 1102.5.2 Subsoil drains shall be open-jointed or of perforated pipe, vitrified clay, plastic, cast-iron, or porous concrete. 1103.0 Traps on Storm Drains and Leaders. 1103.1 Where Required. 1103.2 Where Not Required. 1103.3 Trap Size. 1103.4 Method of Installation of Combined Sewer. 1104.0 Leaders, Conductors, and Connections. 1104.1 Improper Use. 1104.2 Protection of Leaders. 1104.3 Combining Storm with Sanitary Drainage. 1105.0 Roof Drains. 1105.1 Material. 1105.1.1 Roof drains shall be constructed of materials specified in Table 14-1. 1105.1.2 Roof drains shall be of cast-iron, copper or copper alloy, lead, or plastic.
181	1105.2 Dome or Strainer for General Use. 1105.3 Strainers for Flat Decks. 1105.4 Roof Drain Flashings. 1105.4.1 Where lead flashing material is used, it shall be not less than four (4) pounds per square foot (19.5 kg/m2). 1105.4.2 Where copper flashing material is used, it shall be not less than twelve (12) ounces per square foot (3.7 kg/m2). 1106.0 Size of Leaders, Conductors, and Storm Drains. 1106.1 Vertical Conductors and Leaders. 1106.2 Size of Horizontal Storm Drains and Sewers. 1106.3 Size of Roof Gutters. 1106.4 Side Walls Draining onto a Roof. 1107.0 Values for Continuous Flow. 1108.0 Controlled-Flow Roof Drainage. 1108.1 Application.
182	1108.2 Setback Roofs. 1109.0 Testing. 1109.1 Testing Required. 1109.2 Methods of Testing Storm Drainage Systems. 1109.2.1 Water Test. TABLE 11-4 Controlled-Flow Maximum Roof Water Depth TABLE 11-5 Distance of Scupper Bottoms Above Roof
183	1109.2.2 Air Test. 1109.2.3 Exceptions.
184	TABLE 11-1 Sizing Roof Drains, Leaders, and Vertical Rainwater Piping
185	TABLE 11-2 Sizing of Horizontal Rainwater Piping
187	TABLE 11-3 Size of Gutters
190	Chapter 12 Fuel Piping 1201.0 Scope of Gas Piping. 1202.0 General. 1203.0 Definitions. 1203.1 Appliance Fuel Connector. 1203.2 Bonding Jumper. 1203.3 Fuel Gas. TABLES FIGURES
191	1203.4 Gas Piping. 1203.5 Gas-Piping System. 1203.6 Grounding Electrode. 1203.7 Liquefied Petroleum Gas (LPG) Facilities. 1203.8 Provision for Location of Point of Delivery. 1203.9 Quick-Disconnect Device. 1203.10 Service Piping. 1203.11 Transition Gas Riser. 1204.0 Inspection. 1204.1 Upon completion of the installation, alteration, or repair of any gas piping, and prior to the use thereof, the Authority Having Jurisdiction shall be notified that such gas piping is ready for inspection. 1204.2 All excavations required for the installation of underground piping shall be kept open until such time as the piping has been inspected and approved. 1204.3 The Authority Having Jurisdiction shall make the following inspections and either shall approve that portion of the work as completed or shall notify the permit holder wherein the same fails to comply with this code. 1204.3.1 Rough Piping Inspection. 1204.3.2 Final Piping Inspection. 1204.4 In cases where the work authorized by the permit consists of a minor installation of additional piping to piping already connected to a gas meter, the foregoing inspections shall be permitted to be waived at the discretion of the Authority Having Jurisdiction. 1205.0 Certificate of Inspection. 1205.1 If, upon final piping inspection, the installation is found to comply with the provisions of this code, a certificate of inspection shall be permitted to be issued by the Authority Having Jurisdiction. 1205.2 A copy of the certificate of such final piping inspection shall be issued to the serving gas supplier supplying gas to the premises. 1205.3 It shall be unlawful for any serving gas supplier, or person furnishing gas, to turn on or cause to be turned on, any fuel gas or any gas meter or meters, until such certificate of final inspection, as herein provided, has been issued. 1206.0 Authority to Render Gas Service. 1206.1 It shall be unlawful for any person, firm, or corporation, excepting an authorized agent or employee of a person, firm, or corporation engaged in the business of furnishing or supplying gas and whose service pipes supply or connect with the particular premises, to turn on or reconnect gas service in or on any premises where and when gas service is, at the time, not being rendered.
192	1206.2 It shall be unlawful to turn on or connect gas in or on any premises unless all outlets are properly and securely connected to gas appliances or capped or plugged with screw joint fittings. 1207.0 Authority to Disconnect. 1207.1 The Authority Having Jurisdiction or the serving gas supplier is hereby authorized to disconnect any gas piping or appliance or both that shall be found not to conform to the requirements of this code or that are found defective and in such condition as to endanger life or property. 1207.2 Where such disconnection has been made, a notice shall be attached to such gas piping or appliance or both that shall state the same has been disconnected, together with the reasons thereof. 1207.3 It shall be unlawful to remove or disconnect any gas piping or gas appliance without capping or plugging with a screw joint fitting, the outlet from which said pipe or appliance was removed. 1208.0 Temporary Use of Gas. 1209.0 Gas-Piping System Design, Materials, and Components. 1209.1 Piping Plan. 1209.1.1 Installation of Piping System. 1209.1.2 Addition to Existing System. 1209.2 Provision for Location of Point of Delivery. 1209.3 Interconnections Between Gas-Piping Systems. 1209.3.1 Interconnections Supplying Separate Users. 1209.3.2 Interconnections for Standby Fuels. 1209.4 Sizing of Gas-Piping Systems. 1209.4.1 General Considerations. 1209.4.2 Maximum Gas Demand.
193	1209.4.3 Sizing Methods. 1209.4.4 Allowable Pressure Drop. 1209.5 Acceptable Piping Materials and Joining Methods. 1209.5.1 General. 1209.5.1.1 Acceptable Materials. 1209.5.1.2 Used Materials. 1209.5.1.3 Other Materials. 1209.5.2 Metallic Pipe. 1209.5.2.1 Cast-iron pipe shall not be used. 1209.5.2.2 Steel and wrought-iron pipe shall be not less than standard weight (Schedule 40) and shall comply with one of the following standards. TABLE 12-1 Approximate Gas Input for Typical Appliances
194	1209.5.2.3 Copper and brass pipe shall not be used if the gas contains more than an average of 0.3 grains of hydrogen sulfide per one-hundred (100) scf of gas (0.7 mg/100 L). 1209.5.2.4 Aluminum alloy pipe shall comply with ASTM B 241, Standard Specification for Aluminum-Alloy Seamless Pipe and Seamless Extruded Tube (except that the use of alloy 5456 is prohibited) and shall be marked at each end of each length indicating compliance. 1209.5.3 Metallic Tubing. 1209.5.3.1 Steel tubing shall comply with ASTM A 254, Standard Specification for Copper Brazed Steel Tubing. 1209.5.3.2 Copper and brass tubing shall not be used if the gas contains more than an average of 0.3 grains of hydrogen sulfide per one-hundred (100) scf of gas (0.7 mg/100 L). 1209.5.3.3 Aluminum alloy tubing shall comply with ASTM B 210, Standard Specification for Aluminum-Alloy Drawn Seamless Tubes, or ASTM B 241, Standard Specification for Aluminum Alloy Seamless Pipe and Seamless Extruded Tube. 1209.5.3.4 Corrugated stainless steel tubing shall be tested and listed in compliance with the construction, installation, and performance requirements of CSA LC-1, Standard for Fuel Gas Piping Systems Using Corrugated Stainless Steel Tubing. 1209.5.4 Plastic Pipe, Tubing, and Fittings. 1209.5.4.1 Regulator Vent Piping. 1209.5.4.2 Factory-assembled anodeless risers shall be recommended by the manufacturer for the gas used and shall be leak-tested by the manufacturer in accordance with written procedures. 1209.5.4.3 Service head adapters and field assembled anodeless risers incorporating service head adapters shall be recommended by the manufacturer for the gas used by the manufacturer and shall be design-certified to meet the requirements of Category I of ASTM D 2513, Standard Specification for Thermostatic Gas Pressure Pipe, Tubing, and Fittings and the code of Federal Regulations, Title 49, Part 192.281(e). 1209.5.4.4 The use of plastic pipe, tubing, and fittings in undiluted liquefied petroleum gas-piping systems shall be in accordance with NFPA 58, Liquefied Petroleum Gas Code.
195	1209.5.5 Workmanship and Defects. 1209.5.6 Protective Coating. 1209.5.7 Metallic Pipe Threads. 1209.5.8 Metallic Piping Joints and Fittings. 1209.5.8.1 Pipe Joints. 1209.5.8.2 Tubing Joints. 1209.5.8.3 Flared Joints. 1209.5.8.4 Metallic Fittings (Including Valves, Strainers, Filters). TABLE 12-2 Specifications for Threading Metallic Pipe
196	1209.5.9 Plastic Piping, Joints, and Fittings. 1209.5.10 Flanges. 1209.5.11 Flange Gaskets. 1209.6 Gas Meters. 1209.6.1 Capacity.
197	1209.6.2 Location. 1209.6.3 Supports. 1209.6.4 Meter Protection. 1209.6.5 Identification. 1209.7 Gas Pressure Regulators. 1209.7.1 Where Required. 1209.7.2 Listing. 1209.7.3 Location. 1209.7.4 Regulator Protection. 1209.7.5 Venting.
198	1209.7.6 Bypass Piping. 1209.7.7 Identification. 1209.8 Back-Pressure Protection. 1209.8.1 Where to Install. 1209.8.2 Protective Devices. 1209.9 Low-Pressure Protection. 1209.10 Shutoff Valves. 1209.11 Expansion and Flexibility. 1209.11.1 Design.
199	1209.11.2 Special Local Conditions. 1210.0 Excess Flow Valve. 1211.0 Gas Piping Installation. 1211.1 Piping Underground. 1211.1.1 Clearances. 1211.1.2 Protection Against Damage. 1211.1.3 Protection Against Corrosion. 1211.1.4 Protection Against Freezing. 1211.1.5 Piping Through Foundation Wall. 1211.1.6 Piping Underground Beneath Buildings. 1211.1.7 Plastic Pipe.
200	1211.2 Installation of Piping. 1211.2.1 Piping installed above ground shall be securely supported and located where it will be protected from physical damage (also see 1211.1.4). 1211.2.2 Building Structure. 1211.2.3 Other than Dry Gas. 1211.2.4 Gas Piping to be Sloped. 1211.2.4.1 Ceiling Locations. 1211.2.5 Prohibited Locations. 1211.2.6 Hangers, Supports, and Anchors.
201	1211.2.7 Removal of Pipe. 1211.3 Concealed Piping in Buildings. 1211.3.1 General. 1211.3.2 Connections. 1211.3.3 Piping in Partitions. 1211.3.4 Tubing in Partitions. 1211.3.5 Piping in Floors. 1211.4 Piping in Vertical Chases. 1211.5 Maximum Design Operating Pressure. TABLE 12-3 Support of Piping
202	1211.5.1 Pressure Reduction. 1211.5.2 Liquefied Petroleum Gas Systems. 1211.5.3 Construction. 1211.5.4 Ventilation. 1211.6 Appliance Over Pressure Protection. 1211.7 Gas Pipe Turns. 1211.7.1 Metallic Pipe. 1211.7.2 Plastic Pipe.
203	1211.7.3 Elbows. 1211.8 Drips and Sediment Traps. 1211.8.1 Provide Drips Where Necessary. 1211.8.2 Location of Drips. 1211.8.3 Sediment Traps. 1211.9 Outlets. 1211.9.1 Location and Installation. 1211.9.2 Cap Outlets. 1211.10 Branch Pipe Connection. 1211.11 Manual Gas Shutoff Valves. 1211.11.1 Valves at Regulators. 1211.11.2 Valves Controlling Multiple Systems.
204	1211.11.3 Emergency Shutoff Valves. 1211.11.4 Shutoff Valve For Laboratories. 1211.12 Prohibited Devices. 1211.13 Systems Containing Gas-Air Mixtures Outside the Flammable Range. 1211.14 Systems Containing Flammable Gas-Air Mixtures. 1211.15 Electrical Bonding and Grounding. 1211.15.1 Pipe and Tubing other than CSST. 1211.15.2 CSST gas piping systems shall be bonded to the electrical service grounding electrode system at the point where the gas service enters the building. 1211.15.3 Gas piping shall not be used as a grounding conductor or electrode. 1211.15.4 Where a lightning protection system is installed, the bonding of the gas piping system shall be in accordance with NFPA 780, Standard for Installation of Lightning Protection Systems. 1211.16 Electrical Circuits. 1211.17 Electrical Connections. 1212.0 Appliance Connections to Building Piping. 1212.1 Connecting Gas Appliances.
205	1212.2 Suspended Low-Intensity Infrared Tube Heaters. 1212.3 Use of Nonmetallic Gas Hose Connectors. 1212.4 Connection of Portable and Mobile Industrial Gas Appliance. 1212.5 Appliance Shutoff Valves and Connections. 1212.6 Quick-Disconnect Devices. 1212.7 Sediment Trap.
206	1212.8 Installation of Piping. 1213.0 Liquefied Petroleum Gas Facilities and Piping. 1214.0 Pressure Testing and Inspection. 1214.1 General. 1214.1.1 Prior to acceptance and initial operation, piping installations shall be inspected and pressure-tested to determine that the materials, design, fabrication, and installation practices comply with the requirements of this code. 1214.1.2 Inspection shall consist of visual examination during or after manufacture, fabrication, assembly, or pressure tests, as appropriate. 1214.1.3 Where repairs or additions are made following the pressure test, the affected piping shall be tested. 1214.1.4 Where new branches are installed from the point of delivery to new appliances, only the newly installed branches shall be required to be pressure-tested. 1214.1.5 A piping system shall be tested as a complete unit or in sections. 1214.1.6 Regulator and valve assemblies fabricated independently of the piping system in which they are to be installed shall be permitted to be tested with inert gas or air at the time of fabrication. 1214.1.7 Test Medium. 1214.2 Test Preparation. 1214.2.1 Pipe joints, including welds, shall be left exposed for examination during the test. 1214.2.2 Expansion joints shall be provided with temporary restraints, if required for the additional thrust load under test. 1214.2.3 Appliances and equipment that are not to be included in the test shall be either disconnected from the piping or isolated by blanks, blind flanges, or caps. 1214.2.4 Where the piping system is connected to appliances, equipment, or equipment components designed for operating pressures of less than the test pressure, such appliances, equipment, or equipment components shall be isolated from the piping system by disconnecting them and capping the outlets. Figure 12-1 Method of Installing a Tee Fitting Sediment Trap.
207	1214.2.5 Where the piping system is connected to appliances, equipment, or equipment components designed for operating pressures equal to or exceeding the test pressure, such appliances shall be isolated from the piping system by closing the individual appliance equipment shutoff valves. 1214.2.6 Testing of piping systems shall be done with due regard for the safety of employees and the public during the test. 1214.3 Test Pressure. 1214.3.1 Test pressure shall be measured with a manometer or with a pressure-measuring device designed and calibrated to read, record, or indicate a pressure loss due to leakage during the pressure test period. 1214.3.2 The test pressure to be used shall be not less than one and one-half (1-1/2) times the proposed maximum working pressure, but not less than three (3) psi (20 kPa), irrespective of design pressure. 1214.3.3 Test duration shall be not less than one-half (1/2) hour for each five-hundred (500) cubic feet (14 m3) of pipe volume or fraction thereof. 1214.4 Detection of Leaks and Defects. 1214.4.1 The piping system shall withstand the test pressure specified without showing any evidence of leakage or other defects 1214.4.2 The leakage shall be located by means of an approved gas detector, a noncorrosive leak detection fluid, or other approved leak detection methods. 1214.4.3 Where leakage or other defects are located, the affected portion of the piping system shall be repaired or replaced and retested. 1214.5 Piping Systems Leak Check. 1214.5.1 Test Gases. 1214.5.2 Turning Gas On. 1214.5.3 Leak Check. 1214.5.4 Placing Appliance in Operation. 1214.6 Purging Requirements. 1214.6.1 Piping Systems Required to be Purged Outdoors. TABLE 12-5 Length of Piping Requiring Purging with Inert Gas for Servicing or Modification
208	1214.6.1.1 Removal from Service. 1214.6.1.2 Placing in Operation. 1214.6.1.3 Outdoor Discharge of Purged Gases. 1214.6.1.4 Combustible Gas Indicator. 1214.6.2 Piping Systems Allowed to Be Purged Indoors or Outdoors. 1214.6.2.1 Purging Procedure. 1214.6.2.2 Combustible Gas Detector. 1214.6.3 Purging Appliances and Equipment. 1215.0 Interconnections Between Gas Piping Systems. 1215.1 Interconnections Supplying Separate Users. TABLE 12-6 Length of Piping Requiring Purging with Inert Gas Before Placing in Operation
209	1215.2 Interconnections for Standby Fuels. 1216.0 Required Gas Supply. 1216.1 The following regulations, as set forth in this section and in Section 1217.0, Required Gas Piping Size, shall be the standard for the installation of gas piping. 1216.2 The hourly volume of gas required at each piping outlet shall be taken as not less than the maximum hourly rating as specified by the manufacturer of the appliance or appliances to be connected to each such outlet. 1216.3 Where the gas appliances to be installed have not been definitely specified, Table 12-1 shall be permitted to be used as a reference to estimate requirements of typical appliances. 1216.4 The size of the supply piping outlet for any gas appliance shall not be less than one-half (1/2) inch (15 mm). 1217.0 Required Gas Piping Size. 1217.1 Pipe Sizing Methods. 1217.1.1 Longest Length Method. 1217.1.2 Branch Length Method. 1217.1.3 Hybrid Pressure. 1217.2 Tables for Sizing Gas-Piping Systems. 1217.3 Sizing Equations. TABLE 12-4 Cr and Y for Natural Gas and Undiluted Propane at Standard Conditions
210	1217.4 To determine the size of each section of pipe in any system within the range of the Table, proceed as follows: 1217.5 For conditions other than those covered by Section 1217.1, such as longer runs or greater gas demands, the size of each gas piping system shall be determined by standard engineering methods acceptable to the Authority Having Jurisdiction, and each such system shall be so designed that the total pressure drop between the meter or other point of supply and any outlet when full demand is being supplied to all outlets, shall comply with the requirements of Section 1209.4. 1217.6 Where the gas pressure exceeds fourteen (14)inches (356 mm) or less than six (6) inches (152 mm) of water column, or when diversity demand factors are used, the design, pipe, sizing, materials, location, and use of such systems first shall be approved by the Authority Having Jurisdiction.
211	Figure 12-2 Example Illustrating Use of Tables 12-1 and 12-8
212	Table 12-8 Schedule 40 Metallic Pipe
213	Table 12-9 Schedule 40 Metallic Pipe
214	Table 12-10 Schedule 40 Metallic Pipe
215	Table 12-11 Schedule 40 Metallic Pipe
216	Table 12-12 Semi-Rigid Copper Tubing
217	Table 12-13 Semi-Rigid Copper Tubing
218	Table 12-14 Semi-Rigid Copper Tubing
219	Table 12-15 Semi-Rigid Copper Tubing
220	Table 12-16 Semi-Rigid Copper Tubing
221	Table 12-17 Semi-Rigid Copper Tubing
222	Table 12-18 Semi-Rigid Copper Tubing
223	Table 12-19 Corrugated Stainless Steel Tubing (CSST) Table 12-20 Corrugated Stainless Steel Tubing (CSST)
224	Table 12-21 Corrugated Stainless Steel Tubing (CSST) Table 12-22 Corrugated Stainless Steel Tubing (CSST)
225	Table 12-23 Corrugated Stainless Steel Tubing (CSST) Table 12-24 Polyethylene Plastic Pipe
226	Table 12-25 Polyethylene Plastic Pipe
227	Table 12-26 Polyethylene Plastic Pipe
228	Table 12-27 Polyethylene Plastic Tubing Table 12-28 Polyethylene Plastic Tubing
229	Table 12-29 Schedule 40 Metallic Pipe
230	Table 12-30 Schedule 40 Metallic Pipe
231	Table 12-31 Schedule 40 Metallic Pipe
232	Table 12-32 Schedule 40 Metallic Pipe
233	Table 12-33 Semi-Rigid Copper Tubing
234	Table 12-34 Semi-Rigid Copper Tubing
235	Table 12-35 Semi-Rigid Copper Tubing
236	Table 12-36 Corrugated Stainless Steel Tubing (CSST) Table 12-37 Corrugated Stainless Steel Tubing (CSST)
237	Table 12-38 Corrugated Stainless Steel Tubing (CSST) Table 12-39 Polyethylene Plastic Pipe
238	Table 12-40 Polyethylene Plastic Pipe
240	Chapter 13 Health Care Facilities and Medical Gas and Vacuum Systems Part I – Special Requirements for Health Care Facilities. 1301.0 Application. 1301.1 Construction and equipment requirements shall be applied only to new construction and new equipment, except as modified in individual chapters. 1301.2 This chapter applies to the special fixtures and systems in health care facilities and to the special plumbing requirements for such facilities. 1301.3 This chapter shall not apply to breathing air replenishment (BAR) systems. 1302.0 Medical Gas and Vacuum Piping Systems – Installation Requirements. 1302.1 The installation of individual components shall be made in accordance with the instructions of the manufacturer. 1302.2 The installation of medical gas and vacuum systems shall be made by qualified, competent technicians who are experienced in making such installations. 1302.3 Brazing shall be performed by individuals who are qualified under the provisions of Section 1311.6. 1302.4 Prior to any installation work, the installer of medical gas and vacuum piping shall provide and maintain documentation on the job site for the qualification of brazing procedures and individual brazers that are required under Section 1311.6. 1303.0 Protrusions from Walls. 1303.1 Drinking fountain control valves shall be flush-mounted or fully recessed when installed in corridors or other areas where patients are transported on a gurney, bed, or wheelchair. 1303.2 Piping exposed in corridors and other areas where subject to physical damage from the movement of carts, stretchers, portable equipment, or vehicles shall be protected. 1304.0 Psychiatric Patient Rooms. 1305.0 Locations for Ice Storage. 1306.0 Sterilizers. 1306.1 General. 1306.2 Indirect Waste Connections. TABLES
241	1307.0 Vapor Vents and Stacks for Sterilizers. 1307.1 General. 1308.0 Aspirators. 1308.1 (See Section 603.4.9, Water Inlets to Water Supplied Aspirators.) Provisions for aspirators or other water-supplied suction devices shall be installed only with the specific approval of the Authority Having Jurisdiction. Part II – Medical Gas and Vacuum Systems. 1309.0 Application. 1309.1 The provisions herein shall apply to the installation, testing, and verification of medical gas and vacuum piping in hospitals, clinics, and other health care facilities. 1309.2 The purpose of this chapter is to provide requirements for the installation, testing, and verification of medical gas and medical vacuum systems, from the central supply system to the station outlets or inlets. 1309.3 Wherever the terms medical gas or vacuum occur, the provisions shall apply to piped systems for oxygen, nitrous oxide, medical air, carbon dioxide, helium, medical–surgical vacuum, waste anesthetic gas disposal, and mixtures thereof. 1309.4 This chapter does not apply to portable compressed gas systems. 1309.5 This chapter does not apply to: 1309.6 The requirements of this chapter shall not be interpreted to conflict with the requirements of NFPA 99, Standard for Health Care Facilities. 1309.7 An existing system that is not in strict compliance with the provisions of the standard (Code) shall be permitted to be continued in use as long as the Authority Having Jurisdiction has determined that such use does not constitute a distinct hazard to life. 1310.0 Definitions. 1310.1 Building Supply. 1310.2 Critical Care Area. 1310.3 General Care Areas. 1310.4 Manifold. 1310.5 Medical Air.
242	1310.6 Medical Gas. 1310.7 Medical Gas System. 1310.8 Medical Vacuum System. 1310.9 Nitrogen, NF (Oil-Free, Dry) (Nitrogen for Brazing and Testing). 1310.10 Patient Care Area. 1310.11 Purge, Flow. 1310.12 Purge, System. 1310.13 SCFM. 1310.14 Special Hazard Area. 1310.15 Station Inlet. 1310.16 Station Outlet. 1310.17 Use Point. 1310.18 User Outlet. 1310.19 Vacuum System – Level 1. 1310.20 Valve, Isolation. 1310.21 Valve, Riser. 1310.22 Valve, Service. 1310.23 Valve, Source. 1310.24 Valve, Zone. 1310.25 Waste Anesthetic Gas Disposal. 1311.0 General Requirements. 1311.1 Oxygen Compatibility. 1311.1.1 Components include but are not limited to containers, valves, valve seats, lubricants, fittings, gaskets, and interconnecting equipment including hose.
243	1311.1.2 Materials used in central supply systems shall meet the following requirement: 1311.2 Certification of medical gas and medical vacuum systems shall conform to the requirements of Section 1328.0 of this code, the Authority Having Jurisdiction, and NFPA 99, Standard for Health Care Facilities, Section 5.1.12. 1311.3 Prior to any installation work, the installer of medical gas and vacuum piping shall provide and maintain documentation on the job site for the qualification of brazing procedures and individual brazers that are required under Section 1311.6. 1311.3.1 Each length of tube shall be delivered plugged or capped by the manufacturer and kept sealed until prepared for installation. 1311.4 Medical gas and medical vacuum systems shall be supplied from a source consisting of not less than two (2) units – primary and secondary, e.g., a manifold consisting of two (2) cylinder banks with not less than two (2) cylinders in each bank, not less than two (2) air compressors, or not less than two (2) vacuum pumps. 1311.5 Health Care Organization personnel shall be permitted to install piping systems if the requirements of this chapter are met during installation. 1311.6 Brazing procedures and brazer performance for the installation of medical gas and vacuum piping shall be qualified in accordance with either Section IX, Welding and Brazing Qualifications, of the ASME Boiler and Pressure Vessel Code, or AWS B2.2, Standard for Brazing Procedure and Performance Qualifications, both as modified below. 1311.6.1 Brazers shall be qualified by visual examination of the test coupon followed by sectioning. 1311.6.2 The Brazing Procedure Specification (BPS) shall address cleaning, joint clearance, overlap, internal purge gas purge gas flow rate, and filler metal. 1311.6.3 The brazing procedure specification and the record of brazer performance qualification shall document filler metal used, cleaning, joint clearance, overlap, internal purge gas, and flow rate during brazing of coupon, and the absence of internal oxidation in the completed coupon. 1311.6.4 Brazing procedures qualified by a technically competent group or agency shall be permitted under the following conditions: 1311.6.5 An employer shall be permitted to accept brazer qualification records of a previous employer under the following conditions: 1311.6.6 Performance qualifications of brazers shall remain in effect indefinitely unless the brazer does not braze with the qualified procedure for a period exceeding six (6) months, or there is a specific reason to question the ability of the brazer. 1312.0 Plan Review. 1312.1 Before any medical gas or medical vacuum system is installed or altered in any hospital, medical facility, or clinic, duplicate plans and specifications shall be filed with the Authority Having Jurisdiction.
244	1312.2 Plans and specifications shall show the following, in detail: 1312.2.1 Plot plan of the site, drawn to scale, indicating the location of existing or new cylinder storage areas, property lines, driveways, and existing or proposed buildings. 1312.2.2 Piping layout of the proposed piping system or alteration, including alarms, valves, origin of gases, and user outlets/inlets. 1312.2.3 Complete specification of materials. 1312.3 Plans and specifications submitted to the Authority Having Jurisdiction shall clearly indicate the nature and extent of the work proposed and shall show in detail that such work will conform to the provisions of this code. 1312.4 A record of as-built plans and valve identification records shall remain on the site at all times. 1313.0 System Performance. 1313.1 Required Operating Pressures. 1313.2 Minimum Flow Rates. 1313.3 Minimum Station Outlets/Inlets. 1314.0 Required Pipe Sizing. 1314.1 Where the maximum demand for each medical gas or vacuum system and the maximum length of piping between the source equipment and the most distant station outlet/inlet do not exceed the values in Table 13-6, the size of pipe of each section of the system shall be determined using Tables 13-4 and 13-6. 1314.2 To determine the size of each section of pipe in any system within the range of Table 13-6, proceed as follows: 1314.2.1 Measure the length of the pipe from the source equipment location to the most remote station inlet/outlet on the system. 1314.2.2 In Table 13-6, select the column showing that distance, or the next longer distance if the table does not give the exact length. 1314.2.3 Starting at the most remote outlet/inlet, find in the vertical column just selected the medical gas or vacuum demand for that inlet/outlet. 1314.2.4 Opposite this demand figure, in the first column at the left in Table 13-6, will be found the correct size of pipe. 1314.2.5 Using this same vertical column, proceed in a similar manner for each section of pipe serving this inlet/outlet. 1314.2.6 Size each section of branch piping not previously sized by measuring the distance from the source equipment location to the most remote inlet/outlet in that branch, and follow the procedures of Sections 1314.2.2 through 1314.2.5. 1314.3 For conditions other than those covered by Section 1314.1 of this section, such as longer runs of greater gas or vacuum demands, the size of each gas or vacuum piping system shall be determined by standard engineering methods acceptable to the Authority Having Jurisdiction, and each system shall be so designed that the total pressure drop or gain between the source equipment and any inlet/outlet shall not exceed the allowable pressures shown in Table 13-1. 1315.0 Workmanship. 1315.1 Design, construction, and workmanship shall be in conformity with accepted engineering practices and shall meet the requirements of this code. 1315.2 Cracks, holes, or other imperfections in materials shall not be concealed by welding, brazing, or soldering, or by using paint, wax, tar, other leak sealing or repair agents. 1315.3 Burred ends of all tubing shall be deburred using a deburring tool to the full bore of the tube, and all chips shall be removed. 1316.0 Materials.
245	1316.1 Tubes, valves, fittings, station outlets, and other piping components in medical gas systems shall have been cleaned for oxygen service by the manufacturer prior to installation in accordance with CGA 4.1, Cleaning Equipment for Oxygen Service, except that fittings shall be permitted to be cleaned by a supplier or agency other than the manufacturer. 1316.2 Each length of tube shall be delivered plugged or capped by the manufacturer and kept sealed until prepared for installation. 1316.3 Tubes shall be hard-drawn seamless copper ASTM B 819 medical gas tube, Type L, except that where operating pressures are exceeding a gauge pressure of one-hundred and eighty-five (185) psi (1,275 kPa), Type K shall be used for sizes exceeding DN80 (NPS 3) (3-1/8 in. O.D.). 1316.4 Turns, offsets, and other changes in direction in welded or brazed medical gas and vacuum piping shall be made with wrought-copper capillary fittings complying with ASME B16.22, Wrought Copper and Copper Alloy Solder-Joint Pressure Fittings, or brazed fittings complying with ASME B16.50, Wrought Copper and Copper Alloy Braze-Joint Pressure Fittings. 1316.4.1 Cast-copper alloy fittings shall not be permitted. 1316.4.2 Branch connections in vacuum piping systems shall be permitted to be made using mechanically formed, drilled, and extruded tee branch connections that are formed in accordance with the tool manufacturer’s instructions and brazed. 1316.5 The following special fittings shall be permitted to be used in lieu of brazed joints: 1316.6 The following joints shall be prohibited throughout medical gas and vacuum distribution pipeline systems: 1316.6.1 Threaded joints in medical gas and vacuum distribution piping shall meet the following requirements:
246	1316.7 New or replacement shutoff valves shall be as follows: 1316.8 Soldered joints in copper Level 3 vacuum and Level 3 gas-powered systems piping shall be made in accordance with ASTM B 828, Making Capillary Joints by Soldering of Copper and Copper Alloy Tube and Fittings, using a lead-free solder filler metal containing not more than 0.2 percent lead by volume. 1317.0 Cleaning for Medical Gas Piping Systems. 1317.1 The interior surfaces of tube ends, fittings, and other components that were cleaned for oxygen service by the manufacturer, but become contaminated prior to being installed, shall be permitted to be recleaned on-site by the installer by thoroughly scrubbing the interior surfaces with a clean, hot water–alkaline solution, such as sodium carbonate or trisodium phosphate one (1) pound to three (3) gallons (450 g to 11 L) of potable water and thoroughly rinsing them with clean, hot potable water. 1317.2 Material that has become contaminated internally and is not clean for oxygen service shall not be installed. 1318.0 Installation of Piping. 1318.1 Piping shall be protected against freezing, corrosion, and physical damage. 1318.2 Piping risers shall be permitted to be installed in pipe shafts if protected from physical damage, effects of excessive heat, corrosion, or contact with oil. 1318.3 Buried piping outside of buildings shall be installed below the local level of frost penetration. 1318.4 The installation procedure for underground piping shall protect the piping from physical damage while being backfilled.
247	1318.5 Hose and flexible connectors, both metallic and nonmetallic, shall be no longer than necessary and shall not penetrate or be concealed in walls, floors, ceilings, or partitions. 1318.6 Where a positive-pressure medical gas piping distribution system, originally used or constructed for the use at one (1) pressure and for one (1) gas, is converted for operation at another pressure or for another gas, the provisions of Section 1316.0 shall apply as if the system were new. 1318.7 Piping exposed in corridors and other areas where subject to physical damage from the movement of carts, stretchers, portable equipment, or vehicles shall be protected. 1318.8 Piping shall be supported from the building structure in accordance with MSS Standard Practice SP-69, Piping Hangers and Supports – Selection and Application. 1318.9 Where required, medical gas and vacuum piping shall be seismically restrained against earthquakes in accordance with the applicable building code. 1318.10 Two (2) or more medical gas-piping systems shall not be interconnected for testing or any other reason. 1318.11 Piping shall be labeled by stenciling or adhesive markers that identify the patient medical gas, the support gas, or vacuum system, and include: 1319.0 Joints. 1319.1 Brazed joints shall be made using a brazing alloy that exhibits a melting temperature in excess of 1,000°F (538°C) to retain the integrity of the piping system in the event of fire exposure.
248	1319.2 Tube ends shall be cut square using a sharp tubing cutter to avoid deforming the tube. 1319.3 The interior surfaces of tubes, fittings, and other components that are cleaned for oxygen service shall be stored and handled to avoid contamination prior to assembly and brazing. 1319.4 Flux shall only be used when brazing dissimilar metals such as copper and bronze or brass, using a silver (BAg series) brazing filler metal. 1319.5 Tube ends shall be inserted fully into the socket of the fitting.
249	1319.6 When being brazed, joints shall be continuously purged with oil-free, dry nitrogen NF to prevent the formation of copper oxide on the inside surfaces of the joint. 1319.7 After brazing, the outside of all joints shall be cleaned by washing with water and a wire brush to remove any residue and permit clear visual inspection of the joint. 1320.0 Valves – Requirements, Locations, and Labeling. 1320.1 General Requirements. 1320.1.1 Where valves are concealed in any enclosure, the door or entry to the enclosure shall be identified and color coded with the type of gas service installed, as described in Section 1323.0. 1320.2 In-line shutoff valves intended for use to isolate piping for maintenance or modification shall meet the following requirements:
250	1320.3 Shutoff valves provided for the connection of future piping shall meet the following requirements: 1320.3.1 Future connection valves shall be labeled as to gas content. 1320.3.2 Downstream piping shall be closed with a brazed cap with tubing allowance for cutting and rebrazing. 1320.3.3 A zone valve shall be located immediately outside each vital life-support, critical care, and anesthetizing location in each medical gas and/or vacuum line, and located so as to be readily accessible in an emergency. 1320.3.4 Gas-delivery columns, hose reels, ceiling tracks, control panels, pendants, booms, or other special installations shall be located downstream of the zone valve. 1320.3.5 Zone valves shall be so arranged that shutting off the supply of gas to any one (1) operating room or anesthetizing location will not affect the others. 1320.4 Source Valve. 1320.4.1 The source valve shall be located in the immediate vicinity of the source equipment. 1320.4.2 The source valve shall be labeled in accordance with Section 1323.0, Source Valve for the (Source Name). 1320.5 Main Valve. 1320.5.1 The main line valve shall be located to permit access by authorized personnel only (i.e., by locating above a ceiling or behind a locked access door). 1320.5.2 The main line valve shall be located on the facility side of the source valve and outside of the source room, enclosure, or where the main line first enters the building. 1320.5.3 The main line shall be labeled in accordance with Section 1323.0. 1320.6 Riser Valve. 1320.7 Zone Valve. 1320.7.1 Zone valves shall be readily operable from a standing position in the corridor on the same floor they serve. 1320.7.2 Zone valves shall be so arranged that shutting off the supply of medical gas or vacuum to one (1) zone will not affect the supply of medical gas or vacuum to another zone or the rest of the system. 1320.8 Service Valves. 1320.8.1 Only one (1) service valve shall be required for each branch off of a riser regardless of how many zone valve boxes are installed on that lateral. 1320.8.2 Service valves shall be installed to allow servicing or modification of lateral branch piping from a main or riser without shutting down the entire main, riser, or facility.
251	1321.0 Pressure-Regulating Equipment. 1321.1 Pressure-regulating equipment shall be installed in the supply main upstream of the final line-pressure valve. 1321.2 Each central supply system shall have a pressure-relief valve set at 50 percent above normal line pressure, installed downstream of the pressure regulator and upstream of any shutoff valve. 1321.2.1 Pressure-relief valves shall close automatically when excess pressure has been released. 1321.2.2 Pressure-relief valves set at 50 percent shall be vented to the outside from gas systems, except medical air, or if the total capacity of the supply system is in excess of three-thousand (3,000) cubic feet (85 m3) of gas. 1321.2.3 Pressure-relief valves shall be of brass or bronze and specially designed for the gas service involved. 1321.2.4 A pressure-relief valve shall not be isolated from its intended use by any valve. 1321.3 Pressure Gauges. 1322.0 Station Outlets/Inlets. 1322.1 After installation of the piping, but before installation of the station outlets/inlets and other medical gas and medical gas system components (e.g., pressure-actuating switches for alarms, manifolds, pressure gauges, or pressure relief valves), the line shall be blown clear by means of oil-free, dry nitrogen. 1323.0 Labeling and Identification. 1323.1 Piping shall be labeled by stenciling or adhesive markers that identify the medical gas, support gas, or vacuum system and include: 1323.2 Shutoff valves shall be identified as follows: 1323.3 Station outlets and inlets shall be identified as to the name or chemical symbol for the specific medical gas or vacuum provided. 1323.4 The shutoff valves described in Sections 1320.4, 1320.5, and 1320.6 shall be labeled to reflect the rooms that are controlled by such valves.
252	1324.0 Alarms. 1324.1 Functioning of alarm components shall be verified in accordance with testing and monitoring requirements of the manufacturer and the Authority Having Jurisdiction. 1325.0 Medical Air System. 1325.1 Medical air compressors shall be sufficient to serve the peak calculated demand with the largest single compressor out of service.
253	1325.2 The medical air compressors shall draw their air from a source of clean air located where no contamination is anticipated from engine exhausts, fuel storage vents, medical-surgical vacuum system discharges, particulate matter, or odor of any type. 1325.3 Compressor intake piping shall be hard-drawn seamless copper, and one of the following: 1325.3.1 Each medical air compressor shall have an isolation valve installed so that shutting off or failure of the largest unit will not affect the operation of the other unit(s). 1325.4 Drains shall be installed on dryers, after coolers, separators, and receivers. 1325.5 Medical air receivers shall be provided with proper valves to allow the flow of compressed air to enter and exit out of separator receiver ports during normal operation and allow the receiver to be bypassed during service, without shutting down the medical air system. 1325.6 Medical Air Receivers. 1326.0 Medical Vacuum Pump System. 1326.1 Medical–surgical vacuum sources shall consist of the following:
254	1326.1.1 Additional pumps shall automatically activate when the pumps in operation are incapable of adequately maintaining the required vacuum. 1326.2 The medical–surgical vacuum pumps shall exhaust in a manner and location that will minimize the hazards of noise and contamination to the facility and its environment. 1326.2.1 Vacuum exhausts from multiple pumps shall be permitted to be joined together to one (1) common exhaust where the following conditions are met: 1326.3 Receivers for vacuum shall meet the following requirements: 1326.4 Piping between vacuum pumps, discharges, receivers, and the vacuum main line valve shall be in accordance with Section 1316.3, except that stainless, galvanized, or black steel pipe shall be permitted to be used. 1326.5 Drains shall be installed and terminate in an approved location. 1327.0 Testing and Inspection. 1327.1 Inspection and testing shall be performed on new piped gas systems, additions, renovations, temporary installations, or repaired systems, to ensure the facility, by a documented procedure, that the applicable provisions of this document have been adhered to and system integrity has been achieved or maintained. 1327.1.1 Tests and inspections required by this section shall not be interpreted to conflict with the requirements of NFPA 99, Standard for Health Care Facilities.
255	1327.2 Systems that are breached and components that are subject to additions, renovations, or replacement (e.g., new gas sources: bulk, manifolds, compressors, dryers, alarms) shall be inspected and appropriately tested. 1327.2.1 Systems shall be deemed breached at the point of pipeline intrusion by physical separation, by system component removal, replacement, or addition. 1327.3 Advance Notice. 1327.4 Responsibility. 1327.5 Testing. 1327.6 Retesting. 1327.7 Initial Pressure Test – Piped Gas Systems. 1327.8 Cross-Connection Test – Piped Gas Systems. 1327.8.1 The source of test gas shall be disconnected, and the system tested shall be reduced to atmospheric pressure. 1327.8.2 Where a medical vacuum system is installed, the cross-connection testing shall include that piped vacuum system with medical gas-piping systems. 1327.8.3 Medical-surgical vacuum systems shall be in operation so that these vacuum systems are tested at the same time the medical gas systems are tested. 1327.9 Final Testing Standing Pressure Test – Piped Gas Systems. 1327.9.1 After the piping system is filled with test gas, the supply valve and all outlets shall be closed and the source of test gas disconnected.
256	1327.10 Initial Pressure Test – Piped Vacuum Systems. 1327.11 Standing Pressure Test – Piped Vacuum Systems. 1327.12 Corrections.
257	1327.13 Approval. 1327.14 Covering or Use. 1327.15 Uncovering. 1328.0 System Certification. 1328.1 Prior to any medical gas system being placed in service, each and every system shall be certified, as described in Section 1328.2. 1328.1.1 Verification tests shall be performed only after all tests required in Section 1327.0, Installer-Performed Tests, have been completed. 1328.2 Certification tests, verified and attested to by the certification agency, shall include the following: 1328.2.1 Verifying compliance with the installation requirements. 1328.2.2 Testing and checking for leakage, correct zoning, and identification of control valves. 1328.2.3 Checking for identification and labeling of pipelines, station outlets, and control valves. 1328.2.4 Testing for cross-connection, flow rate, system pressure drop, and system performance. 1328.2.5 Functional testing of pressure relief valves and safety valves. 1328.2.6 Functional testing of all sources of supply. 1328.2.7 Functional testing of alarm systems, including accuracy of system components. 1328.2.8 Purge flushing of system and filling with specific source gases. 1328.2.9 Testing for purity and cleanliness of source gases. 1328.2.10 Testing for specific gas identity at each station outlet. 1328.3 The inspection and testing reports shall be submitted directly to the party that contracted for the testing, who shall submit the report through channels to the responsible facility authority and any others that are required. 1328.4 A report that includes the specific items mentioned in Section 1328.2 and other information required by NFPA 99, Standard for Health Care Facilities shall be delivered to the Authority Having Jurisdiction prior to acceptance of the system.
258	TABLE 13-1 Standard Designation Colors and Operating Pressures for Gas and Vacuum Systems
259	TABLE 13-2 Minimum Flow Rates TABLE 13-3 Minimum Outlets/Inlets per Station
260	TABLE 13-4 System Sizing – Flow Requirements for Station Inlet/Outlet TABLE 13-5 Outlet Rating for Vacuum Piping Systems
261	TABLE 13-6 Size of Gas/Vacuum Piping TABLE 13-7 Maximum Pipe Support Spacing
262	Chapter 14 Referenced Standards Table 14-1
290	Chapter 15 Firestop Protection 1501.0 General Requirements. 1501.1 Applicability. 1502.0 Plans and Specifications. 1502.1 Plans and specifications shall indicate with sufficient detail how penetrations of fire-resistance rated assemblies shall be firestopped prior to obtaining design approval. 1503.0 Installation. 1503.1 Firestop materials shall be installed in accordance with this chapter, the Building Code, and the manufacturer’s instructions. 1504.0 Definitions. 1504.1 Penetration Firestop System. 1504.2 F Rating. 1504.3 T Rating. 1505.0 Combustible Piping Installations. 1505.1 Combustible piping installations shall be protected in accordance with the appropriate fire resistance rating requirements in the Building Code that list the acceptable area, height, and type of construction for use in specific occupancies to assure compliance and integrity of the fire resistance rating prescribed. 1505.2 When penetrating a fire-resistance-rated wall, partition, floor, floor-ceiling assembly, roof-ceiling assembly, or shaft enclosure, the fire resistance rating of the assembly shall be restored to its original rating. 1505.3 Penetrations shall be protected by an approved penetration firestop system installed as tested in accordance with ASTM E119, ASTM E814, UL 263, or UL 1479 with a positive pressure differential of not less than one- one-hundredth (0.01) of an inch of water. 1505.4 When piping penetrates a rated assembly, combustible piping shall not connect to noncombustible piping unless it can be demonstrated that the transition complies with the requirements of Section 1505.3. 1505.5 Insulation and Coverings. 1505.6 Sleeves. 1506.0 Non-Combustible Piping Installations. 1506.1 Noncombustible piping installations shall be protected in accordance with the appropriate fire resistance rating requirements in the Building Code that list the acceptable area, height, and type of construction for use in specific occupancies to ensure compliance and integrity of the fire-resistance rating prescribed. 1506.2 When penetrating a fire-resistance-rated wall, partition, floor, floor-ceiling assembly, roof-ceiling assembly, or shaft enclosure, the fire-resistance rating of the assembly shall be restored to its original rating.
291	1506.3 Penetrations shall be protected by an approved penetration firestop system installed as tested in accordance with ASTM E119, ASTM E814, UL 263, or UL 1479 with a positive pressure differential of not less than one- one-hundredth (0.01) of an inch of water. 1506.4 When piping penetrates a rated assembly, combustible piping shall not connect to noncombustible piping unless it can be demonstrated that the transition complies with the requirements of Section 1506.3. 1506.5 Unshielded couplings shall not be used to connect noncombustible piping unless it can be demonstrated that the fire-resistive integrity of the penetration is maintained. 1506.6 Sleeves. 1506.7 Insulation and Coverings. 1507.0 Required Inspection. 1507.1 General. 1507.2 The Authority Having Jurisdiction shall conduct a thorough examination of sufficient representative installations, including destructive inspection, to provide verification of satisfactory compliance with this chapter, the appropriate manufacturers installation standards applied by the installer, construction documents, specifications, and applicable manufacturers product information. 1507.3 The Authority Having Jurisdiction shall determine the type, size, and quantity of penetrations to be inspected. 1507.4 The Authority Having Jurisdiction shall compare the field installations with the documentation supplied by the installer to determine the following:
292	Chapter 16 Nonpotable Water Reuse Systems Part I 1601.0 Gray Water Systems – General. 1602.0 Definition. 1603.0 Permit. 1604.0 Drawings and Specifications. 1605.0 Inspection and Testing. TABLES FIGURES
293	1606.0 Procedure for Estimating Gray Water Discharge. 1607.0 Required Area of Subsurface Irrigation/Disposal Fields. 1608.0 Determination of Maximum Absorption Capacity. 1609.0 Holding Tank Construction.
294	1610.0 Gray Water Systems. 1610.1 Pipe Materials. 1610.2 Color and Information. 1610.3 Valves. 1610.4 Trap. 1611.0 Irrigation/Disposal Field Construction.
295	1612.0 Special Provisions.
296	TABLE 16-1 Location of Gray Water System
297	TABLE 16-2 Design Criteria of Six Typical Soils
298	FIGURE 16-1 Gray Water System Tank – Gravity.
299	FIGURE 16-2 Gray Water System Tank – Pumped.
300	FIGURE 16-3 Gray Water System Multiple-Tank Installation.
301	FIGURE 16-4 Gray Water System Underground Tank – Pumped.
302	FIGURE 16-5 Gray Water System Typical Irrigation Layout.
303	Part II 1613.0 Reclaimed Water Systems – General. 1614.0 Definitions. 1615.0 Permit. 1616.0 Drawings and Specifications. 1617.0 Pipe Material/Pipe Identification. 1617.1 Pipe Materials. 1617.2 Color and Information.
304	1618.0 Installation. 1619.0 Signs. 1620.0 Inspection and Testing.
305	1621.0 Sizing.
306	Appendices Table of Contents
308	Appendix A Recommended Rules for Sizing the Water Supply System A 1.0 Preliminary Information. A 1.1 Obtain the necessary information regarding the minimum daily service pressure in the area where the building is to be located. A 1.2 If the building supply is to be metered, obtain information regarding friction loss relative to the rate of flow for meters in the range of sizes likely to be used. A 1.3 Obtain all available local information regarding the use of different kinds of pipe with respect both to durability and to decrease in capacity with length of service in the particular water supply. A 2.0 Demand Load. A 2.1 Estimate the supply demand for the building main, the principal branches and risers of the system by totaling the fixture units on each, Table A-2, and then by reading the corresponding ordinate from Chart A-2 or A-3, whichever is applicable. A 2.2 Estimate continuous supply demands in gallons per minute (liters per second) for lawn sprinklers, air conditioners, etc., and add the sum to the total demand for fixtures. A 3.0 Permissible Friction Loss. A 3.1 Decide what is the desirable minimum residual pressure that shall be maintained at the highest fixture in the supply system. A 3.2 Determine the elevation of the highest fixture or group of fixtures above the water (street) main. A 3.3 Subtract the sum of loss in static pressure and the residual pressure to be maintained at the highest fixture from the average minimum daily service pressure. A 3.4 Determine the developed length of pipe from the water (street) main to the highest fixture. A 4.0 Size of Building Supply. A 4.1 Knowing the permissible friction loss per one hundred (100) feet (30,480 mm) of pipe and the total demand, the diameter of the building supply pipe shall be permitted to be obtained from Charts A-4, A-5, A-6, or A-7, whichever is applicable. A 4.2 If copper tubing or brass pipe is to be used for the supply piping and if the character of the water is such that only slight changes in the hydraulic characteristics may be expected, Chart A-4 shall be permitted to be used. TABLES CHARTS
309	A 4.3 Chart A-5 should be used for ferrous pipe with only the most favorable water supply in regards to corrosion and caking. A 5.0 Size of Principal Branches and Risers. A 5.1 The required size of branches and risers shall be permitted to be obtained in the same manner as the building supply, by obtaining the demand load on each branch or riser and using the permissible friction loss computed in Section A 3.0. A 5.2 Fixture branches to the building supply, if they are sized for the same permissible friction loss per one-hundred (100) feet (30,480 mm) of pipe as the branches and risers to the highest level in the building, may lead to inadequate water supply to the upper floor of a building. A 5.3 The size of branches and mains serving flushometer tanks shall be consistent with sizing procedures for flush tank water closets. A 6.0 General. A 6.1 Velocities shall not exceed ten (10) feet/second (3.0 m/sec.) or the maximum values given in the appropriate Installation Standard, except as otherwise approved by the Authority Having Jurisdiction. A 6.2 If a pressure-reducing valve is used in the building supply, the developed length of supply piping and the permissible friction loss should be computed from the building side of the valve. A 6.3 The allowances in Table A-3 for fittings are based on non-recessed threaded fittings. A 7.0 Example. A 7.1 Assume an office building of four (4) stories and basement; pressure on the building side of the pressure-reducing valve of fifty-five (55) psi (379 kPa) (after an allowance for reduced pressure falloff at peak demand); an elevation of highest fixture above the pressure-reducing valve of forty-five (45) feet (13,716 mm); a developed length of pipe from the pressure-reducing valve to the most distant fixture of two-hundred (200) feet (60,960 mm); and fixtures to be installed with flush valves for water closets and stall urinals as follows:
310	Chart A-1 Friction Losses for Disk-Type Water Meters
311	TABLE A-2 Water Supply Fixture Units (WSFU) and Minimum Fixture Branch Pipe Sizes
312	TABLE A-3 Allowance in Equivalent Length of Pipe for Friction Loss in Valves and Threaded Fittings* Equivalent Length of Pipe for Various Fittings
314	Chart A-2 Estimate Curves for Demand Load
315	Chart A-3 Enlarged Scale Demand Load
316	Chart A-4
318	Chart A-5
320	Chart A-6
322	Chart A-7
324	Appendix B Explanatory Notes on Combination Water and Vent Systems B 1.0 Combination waste and vent systems, as outlined in Section 910.0 of this code, cover the horizontal wet venting of a series of traps by means of a common waste and vent pipe. B 2.0 Caution must be exercised to exclude appurtenances delivering large quantities or surges of water (such as pumps, sand interceptors, etc.) from combination waste and vent systems in order that adequate venting will be maintained. B 3.0 It is essential that the pneumatics of such a system be properly engineered, as the air pressure within the line must at all times balance that of outside atmosphere in order to prevent either trap seal loss or air locking between traps. B 4.0 Trap sizes are required to be equivalent to the branches they serve (two (2) pipe sizes larger than normal), and tailpieces between fixtures or floor drains and such traps should be reduced to normal size. B 5.0 Duplicate layout drawings of each such proposed piping system must be presented to the Authority Having Jurisdiction and approval obtained before any installation is made. B 5.1 Example of Sizing.
326	Appendix D Sizing Storm Water Drainage Systems D 1.0 Roof Drainage. D 2.0 Sizing by Flow Rate. D 3.0 Sizing by Roof Area. D 4.0 Capacity of Rectangular Scuppers. TABLES TABLE D-1 Maximum Rates of Rainfall for Various Cities
333	TABLE D-2 Discharge from Rectangular Scuppers – Gallons per Minute
334	Appendix E Manufactured/Mobile Home Parks and Recreational Vehicle Parks Part A Manufactured/Mobile Home (M/H) Park Definitions and General Requirements. E 1.0 Manufactured/Mobile Home. E 1.1 Manufactured/Mobile Home Accessory Building or Structure. E 2.0 Manufactured/Mobile Home Lot. E 3.0 Manufactured/Mobile Home Park. E 4.0 General E 5.0 Before any plumbing or sewage disposal facilities are installed or altered in any M/H park, duplicate plans and specifications shall be filed and proper permits obtained from the department or departments having jurisdiction. Part B Manufactured/Mobile Home Park Drainage System Construction. E 6.0 Drainage Systems. E 7.0 Material. E 8.0 Drainage (Sewage) Lines. TABLES
335	E 9.0 M/H Lot Drainage Inlet and Lateral. E 10.0 Location of Lot Drain Inlet. E 11.0 Pipe Size. TABLE E-1 Drainage Pipe Diameter and Number of Fixture Units on Drainage System TABLE E-2 Minimum Grade and Slope of Drainage Pipe
336	E 12.0 M/H Drain Connector. Part C M/H Park Water Supply. E 13.0 General Requirements. E 14.0 Lot Service Outlet Size. E 15.0 Location of Water Service. E 16.0 Pressure. E 17.0 Water Distribution Piping. E 18.0 Shutoff Valve. E 19.0 Backflow Preventer. E 20.0 Pressure-Relief Valve. E 21.0 Mechanical Protection. E 22.0 M/H Water Connector. E 23.0 Water-Conditioning Equipment.
337	E 24.0 Testing. Part D Fuel Supply. E 25.0 General. E 25.1 Gas Supply Connections. E 25.2 Location of Gas Supply Connection. E 26.0 Single and Multiple Manufactured Home Site Fuel Supply Systems. E 26.1 Gas Piping Installations. E 26.1.1 Gas Supply Connections – Underground Gas Piping. E 26.1.2 Underground gas piping system installations shall comply with any applicable Building Code and Sections E 26.1.2.1 and E 26.1.2.2. E 26.1.2.1 Underground gas piping shall not be installed beneath that portion of an M/H site reserved for the location of a manufactured home or M/H accessory building or structure unless installed in the open ended gastight conduit of Section E 26.1.2.2. E 26.1.2.2 The open-ended gastight conduit shall conform to the following:
338	E 27.0 Manufactured Home Site Gas Shutoff Valve. E 28.0 Gas Meters. E 28.1 Support of Meters. E 28.2 Location of Meters. E 28.3 Meter Shutoff Valve or Cock. E 29.0 Multiple Manufactured Home Site Fuel Distribution and Supply Systems. E 30.0 Manufactured Home Community Natural Gas Distribution Systems. E 31.0 Manufactured Home Community LPG Supply Systems. E 32.0 Installation of Cathodic Protection Systems. E 33.0 Required Gas Supply. E 34.0 Gas Pipe Sizing and Pressure. E 34.1 The size of each section of a gas piping system shall be determined in accordance with NFPA 54, National Fuel Gas Code, or by other standard engineering methods acceptable to the Authority Having Jurisdiction. 34.2 Where all connected appliances are operated at their rated capacity, the supply pressure shall be not less than four (4) ounces per square inch [seven (7) inches of water column (1,743 Pa)]. E 35.0 Gas Piping Materials. E 35.1 Metal.
339	E 35.2 Protection Coatings for Metal Gas Piping. E 35.3 Plastic. E 36.0 Gas Piping Installations. E 36.1 Minimum Burial Below Ground Level and Clearances. E 36.2 Metallic Gas Piping. E 36.2.1 Metallic gas piping systems shall be installed in accordance with approved plans and specifications, including provisions for cathodic protection. E 36.2.2 Where the cathodic protection system is designed to protect only the gas piping system, the gas piping system shall be electrically isolated from all other underground metallic systems or installations. E 36.2.3 Where a cathodic protection system is designed to provide all underground metallic systems and installations with protection against corrosion, such systems and installations shall be electrically bonded together and protected as a whole. E 36.3 Plastic Gas Piping. E 36.4 Gas Piping System Shutoff Valve. E 37.0 Liquefied Petroleum Gas Equipment. TABLE E-3 Demand Factors for Use in Calculating Gas Piping Systems in M/H Communities
340	E 38.0 Oil Supply. E 38.1 Minimum Oil Supply Tank Size. E 38.2 Oil Supply Connections – General. E 39.0 Fuel Supply Systems Installation. E 39.1 Flexible Gas Connector. E 39.2 Use of Approved Pipe and Fittings of Extension. E 39.3 Mechanical Protection. E 39.4 Special Rules on Atmospherically Controlled Regulators. E 39.5 Fuel Gas Piping Test. E 39.5.1 The fuel gas piping test shall consist of air pressure of not less than ten (10) inch water column or more than fourteen (14) inch water column [six (6) oz./in.2 to eight (8) oz./in.2 (2,490 Pa to 3,486 Pa)]. 39.5.2 Gas appliance vents shall be visually inspected to ensure that they have not been dislodged in transit and are connected securely to the appliance. E 39.6 Oil Tanks.
341	E 39.6.1 Oil supply tanks shall be installed in accordance with the applicable provisions of NFPA 31, Standard for the Installation of Oil-Burning Equipment. E 39.6.2 A tank with a capacity not larger than sixty (60) gallon (230 L) shall be permitted to be a DOT-5 shipping container (drum) and so marked, or a tank meeting the provisions of UL 80, Steel Inside Tank for Oil Burner Fuel. E 39.6.3 Tanks, as described in Sections E 39.6 and E 39.6.2, that are adjacent to buildings shall be located not less than ten (10) feet (3.05 m) from a property line that is permitted to be built upon. E 39.6.4 Tanks with a capacity not larger than six-hundred and sixty (660) gallons (2,500 L) shall be equipped with an open vent no smaller than a one and one-half (1-1/2) inch (38 mm) iron pipe size; tanks with a five-hundred (500) gallon (1,900 L) or less capacity shall have a vent not less than one and one-quarter (1.25) inch (32 mm) iron pipe size. E 39.6.5 Tanks shall be provided with a means of determining the liquid level. E 39.6.6 The fill opening shall be a size and in a location that permits ready filling without spillage. E 40.0 Manufactured Home Accessory Building Fuel Supply Systems. E 41.0 Community Building Fuel Supply Systems in Manufactured Home Communities. E 41.1 Fuel Gas Piping and Equipment Installations. E 41.2 Oil Supply Systems in M/H Communities. E 41.3 Oil-Burning Equipment and Installation. E 41.4 Inspections and Tests. Part E Recreational Vehicle Parks Definitions and General Requirements. E 42.0 Recreational Vehicle (RV). E 43.0 Recreational Vehicle Park.
342	E 44.0 Recreational Vehicle Site. E 45.0 General. Part F Recreational Vehicle Park Toilet and Shower Facilities. E 46.0 Water Closets and urinals shall be provided at one (1) or more locations in every recreational vehicle park. E 47.0 Facilities for males and females shall be appropriately marked. E 48.0 Not less than one (1) water closet shall be provided for each sex up to the first twenty-five (25) sites. E 49.0 The interior finish of walls shall be moisture resistant to a height of not less than four (4) feet (1,219 mm) to facilitate washing and cleaning. E 50.0 The floors shall be constructed of material impervious to water and shall be easily cleanable. E 51.0 Where water-supplied water closets are provided, an equal number of lavatories shall be provided for up to six (6) water closets. E 52.0 Where separate facilities are provided for men and women, urinals shall be acceptable for not more than one-third (1/3) of the water closets required in the men’s facilities, except that one (1) urinal shall be permitted to be used to replace a water closet in a minimum park. E 53.0 Water closets shall be of an approved, elongated bowl type and shall be provided with seats with open fronts. E 54.0 Each water closet shall be in a separate compartment and shall be provided with a latched door for privacy. E 55.0 Water closet compartments shall be not less than thirty (30) inches (762 mm) in width (no water closet shall be set closer than fifteen (15) inches (381 mm) from its center to a side wall) and shall be not less than thirty (30) inches (762 mm) of clear space in front of each water closet. E 56.0 Each toilet room for women shall be provided with a receptacle for sanitary napkins. E 57.0 Each shower, where provided, shall have a floor area of thirty-six (36) inches by thirty-six (36) inches (914 mm x 914 mm), shall be capable of encompassing a thirty (30) inch (762 mm) diameter circle and shall be of the individual type. E 58.0 Each shower area shall be designed to minimize the flow of water into the dressing area and shall be connected to the drainage system by means of a properly trapped and vented inlet.
343	E 59.0 Every toilet facility shall have a minimum ceiling height of not less than seven (7) feet (2,134 mm) and, unless artificial light is provided, a window or skylight area equal to not less than (10) percent of the floor area shall be provided. E 60.0 Every toilet facility shall have permanent, non-closable, screened opening(s), having a total area not less than five (5) percent of the floor area and opening directly to the exterior in order to provide proper ventilation. Part G Recreational Vehicle Park Potable Water Supply and Distribution. E 61.0 Quality. E 62.0 Sources. E 63.0 Prohibited Connections. E 64.0 Supply. E 65.0 Pressure and Volume. E 66.0 Outlets. E 67.0 Storage Tanks. Part H Recreational Vehicle Park Water Connections for Individual Recreational Vehicles. E 68.0 When provided, the water connections for potable water to individual recreational vehicle sites shall be located on the left rear half of the site (left side of RV) within four (4) feet (1,219 mm) of the stand. E 69.0 Each potable water connection shall consist of a water riser pipe that shall be equipped with a threaded male spigot located not less than twelve (12) inches (305 mm) but not more than twenty-four (24) inches (610 mm) above grade level for the attachment of a standard water hose.
344	E 70.0 Drinking Fountains. Part I Recreational Vehicle Park Drainage System. E 71.0 An adequate and approved drainage system shall be provided in all RV parks for conveying and disposing of all sewage. E 72.0 Material. E 73.0 The minimum diameters of drainage laterals, branches, and mains serving RV sites shall be in accordance with the following table: E 74.0 The sewer lines shall be located to prevent damage from vehicular traffic. E 75.0 Cleanouts shall be provided per Chapter 7 of this code. Part J Recreational Vehicle Site Drainage System Inlet. E 76.0 Where provided, the site drainage system inlet connections for individual RVs shall be located so as to prevent damage by the parking of RVs or automobiles and shall consist of a sewer riser extending vertically to grade. E 77.0 Where provided, the sewer inlet to individual RV sites shall be located on the left rear half of the site (left side of the RV) within four (4) feet (1,219 mm) of the stand. E 78.0 The sewer riser pipe shall be firmly imbedded in the ground and protected against damage from movement. Part K Recreational Vehicle Park Sanitary Disposal Stations. E 79.0 One (1) RV sanitary disposal station shall be provided for each one-hundred (100) RV sites, or part thereof, which are not equipped with individual drainage system connections. E 80.0 Each station shall be level and convenient of access from the service road and shall provide easy ingress and egress for recreational vehicles. E 81.0 Construction. E 82.0 Where the recreational vehicle park is provided with a piped water supply system, means for flushing the recreational vehicle holding tank and the sanitary disposal station slab shall be provided that consists of a piped supply of water under pressure, terminating in an outlet located and installed so as to prevent damage by automobiles or recreational vehicles. TABLE E-4
345	Part L Recreational Vehicle Park Water Supply Stations. E 83.0 A potable watering station, where provided for filling recreational vehicle potable water tanks, shall be located not less than fifty (50) feet (15,240 mm) from a sanitary disposal station. Part M Recreational Vehicle Park Fuel Gas Equipment and Installations. E 84.0 All fuel gas equipment and installations shall comply with Part D of this appendix, except as otherwise permitted or required by this code.
346	Appendix F Firefighter Breathing Air Replenishment Systems F 1.0 Scope. F 2.0 Definitions. F 3.0 System Components. F 4.0 Required Installations. F 4.1 High-rise buildings. F 4.2 Underground structures that are three (3) or more floors below grade with an area greater than twenty-thousand (20,000) square feet (1,858 m2). F 4.3 Large area structures with an area greater than two-hundred-thousand (200,000) square feet (18,581 m2) and where the travel distance from the building centerline to the closest exit is greater than five-hundred (500) feet (152 m), such as warehouses, manufacturing complexes, malls, or convention centers. F 4.4 Underground transportation or pedestrian tunnels exceeding five-hundred (500) feet (152 m) in length. F 5.0 Exterior Fire Department Connection Panel and Enclosure. F 5.1 Purpose. F 5.2 Number of Panels. F 5.3 Location. F 5.4 Construction. F 5.5 Vehicle Protection. F 5.6 Enclosure Marking. F 5.7 Enclosure Components.
347	F 5.8 Pressure-Relief Valve. F 5.9 Security. F 6.0 Interior Cylinder Fill Panels. F 6.1 Cabinet Requirements. F 6.2 Clearance and Access. F 6.3 Door. F 6.4 Cabinet Marking. F 6.5 Cabinet Components. F 6.5.1 The cylinder fill panel shall contain all of the gauges, isolation valves, pressure-relief valves, pressure-regulating valves, check valves, tubing, fittings, supports, connectors, hoses, adapters, and other components to refill SCBA cylinders. F 6.6 Cylinder Filling Hose. F 6.7 Security. F 7.0 Interior Cylinder Fill Stations and Enclosures. F 7.1 Location. F 7.2 Security. F 7.3 Components. F 7.4 Cylinder Filling Hose. F 7.5 Enclosure and Air Filling Station Marking.
348	F 8.0 Materials. F 8.1 Tubing. F 8.2 Fittings. F 8.3 Prohibited Materials. F 8.4 Pressure Monitoring Switch. F 8.5 Isolation Valve. F 9.0 System Requirements. F 9.1 Protection. F 9.2 Markings. F 9.3 Tubing Markings. F 9.4 Support. F 10.0 Design Criteria. F 10.1 Fill Time. F 10.2 Fill Panels or Stations Location. F 10.2.1 High-Rise Buildings. F 10.2.2 Underground Structures.
349	F 10.2.3 Installation Locations. F 11.0 System Assembly Requirements. F 11.1 Welding Requirements. F 11.2 Prevention of Contamination. F 12.0 System Acceptance and Certification. F 12.1 Static Pressure Testing. F 12.2 Low Pressure Switch Test. F 12.3 Compatibility Check. F 12.4 Material Certifications. F 12.5 Air Sampling. F 12.5.1 During the period of air quality analysis, the air fill panel inlet shall be secured so that no air can be introduced into the system and each air fill panel shall be provided with a signstating, “AIR QUALITY ANALYSIS IN PROGRESS, DO NOT FILL OR USE ANY AIR FROM THIS SYSTEM.” F 12.6 Annual Air Sampling. F 12.7 Final Proof Test.
350	Appendix I Installation Standards
352	Installation Standard for Non-Metallic Building Sewer IAPMO IS 1-2006 1.0 Scope 2.0 General Requirements 3.0 Product Requirements
356	Installation Standard for Tile-Lined Roman Bath Tubs IAPMO IS 2-2006
358	1.0 General Requirements 2.0 Materials 3.0 Installation
362	Installation Standard for Copper Plumbing Tube, Pipe, and Fittings IAPMO IS 3-2006 1.0 Scope 2.0 Product Requirements
368	3.0 General Information
370	Installation Standard for Tile-Lined Shower Receptors (and Replacements) IAPMO IS 4-2006
371	1.0 Scope 2.0 General Requirements 3.0 Product Requirements 4.0 Installation Requirements
374	Installation Standard for ABS Building Drain, Waste and Vent Pipe and Fittiings IAPMO IS 5-2006 1.0 Scope 2.0 Product Requirements
380	Installation Standard for Hubless Cast Iron Sanitary and Rainwater Systems IAPMO IS 6-2006 1.0 Scope 2.0 Product Requirements
382	Installation Standard for Polyethylene (PE) Cold Water Building Supply and Yard Piping IAPMO IS 7-2008 1.0 Scope 2.0 Product Requirements
386	Installation Standard for PVC Cold Water Building Supply and Yard Piping IAPMO IS 8-2006 1.0 SCOPE 2.0 PRODUCT REQUIREMENTS
394	Installation Standard For PVC Building Drain, Waste and Vent Pipe and Fittings IAPMO IS 9-2006 1.0 Scope 2.0 Product Requirements
400	Installation Standard for ABS Sewer Pipe and Fittings IAPMO IS 11-2006 1.0 Scope 2.0 Product Requirements
404	Installation Standard for Polyethylene (PE) for Gas Yard Piping IAPMO IS 12-2006 1.0 Scope 2.0 Product Requirements
408	Installation Standard for Protectively Coated Pipe IAPMO IS 13-2006 1.0 Scope 2.0 Product Requirements
410	Installation Standard for Asbestos Cement Pressure Pipe for Water Service and Yard Piping IAPMO IS 15-2006 1.0 Scope 2.0 Product Requirements
416	Installation Standard for Extra Strength Vitrified Clay Pipe in Building Drains IAPMO IS 18-2006 1.0 Scope 2.0 Product Requirements
418	Installation Standard for CPVC Solvent Cemented Hot and Cold Water Distribution Systems IAPMO IS 20-2006 1.0 Scope 2.0 Product Requirements
430	Installation Standard for Welded Copper and Copper Alloy Water Tube IAPMO IS 21-2006 1.0 Scope 2.0 Product Requirements
435	3.0 General Information
438	Installation Standard for Trenchless Insertion of Polyethylene (PE) Pipe for Sewer Laterals IAPMO IS 26–2006 1.0 Scope 2.0 Product Requirements
440	Installation Standard for Odor Control Systems for Water Closets IAPMO IS 27-2003 1.0 Scope
441	2.0 Product Requirements
444	Installation Standard for Composite PEX-AL-PEX Hot and PE-AL-PE Cold Water-Distribution Systems IAPMO IS 28-2005 1.0 Scope 2.0 Product Requirements
448	Installation Standard for Flexible PVC Hose IAPMO SIS 1-2003 1.0 Minimum Standards 2.0 Markings 3.0 Protection of Hoses 4.0 Trenching, Cover, and Backfill
449	5.0 Installation
454	Installation Standard for Assembled Whirlpool Bath Appliances IAPMO SIS 2-2003 1. Purpose and Scope 2. Testing 3. Instructions 4. Labeling Requirements
456	Appendix K Private Sewage Disposal Systems K 1.0 Private Sewage Disposal – General. TABLES
457	K 2.0 Capacity of Septic Tanks. K 3.0 Area of Disposal Fields and Seepage Pits.
458	K 4.0 Percolation Test. K 5.0 Septic Tank Construction.
459	K 6.0 Disposal Fields.
460	K 7.0 Seepage Pits.
461	K 8.0 Cesspools. K 9.0 Commercial or Industrial Special Liquid-Waste Disposal. K 10.0 Inspection and Testing.
462	K 11.0 Abandoned Sewers and Sewage Disposal Facilities.
463	K 12.0 Drawings and Specifications.
464	TABLE K-1 Location of Sewage Disposal System
465	TABLE K-2 Capacity of Septic Tanks* TABLE K-3 Estimated Waste/Sewage Flow Rates
467	TABLE K-4 Design Criteria of Five Typical Soils TABLE K-5
468	Appendix L Alternative Plumbing Systems L 1.0 Scope. L 1.1 The intent of this appendix is to provide clarification of procedures for the design and approval of engineered plumbing systems, alternate materials, and equipment not specifically covered in other parts of the code. L 1.2 The provisions of this appendix apply to the design, installation, and inspection of an engineered plumbing system, alternate material, and equipment. L 1.3 The Authority Having Jurisdiction has the right to require descriptive details of an engineered plumbing system, alternate material, or equipment including pertinent technical data to be filed. L 1.4 Components, materials, and equipment must conform to standards and specifications listed in Table 14-1 of this code and other national consensus standards applicable to plumbing systems and materials. L 1.5 Where such standards and specifications are not available, alternate materials and equipment must be approved per the provisions of Section 301.2 of this code. L 2.0 Engineered Plumbing Systems. L 2.1 Definition. L 2.2 Inspection and Installation. L 2.3 Owner Information. L 3.0 Water Heat Exchangers. L 3.1 Heat exchangers used for heat transfer, heat recovery, or solar heating shall protect the potable water system from being contaminated by the heat-transfer medium. L 3.2 Single-wall heat exchangers shall be permitted if they satisfy all of the following requirements: L 3.3 Other heat exchanger designs shall be permitted to be permitted where approved by the Authority Having Jurisdiction. L 4.0 Fixture Unit Values for Private or Private Use Bathroom Groups. L 4.1 Tables L-1 and L-2 reflect the fixture unit loads for the fixtures in bathrooms as groups, rather than as individual fixtures. L 4.2 The listed water supply fixture unit values in Table L-1 reflect the load of entire bathroom groups on the cold-water service. L 4.3 The listed drainage fixture unit values in Table L-2 reflect the load of entire bathroom groups on the sanitary drainage system. L 5.0 Drainage System Sizing. L 5.1 Definition.
470	L 5.2 Drainage Fixture Units. L 5.3 Size of Building Drain and Building Sewer. L 5.4 Size of Horizontal Branch or Vertical Stack.
472	L 5.4.1 Horizontal Stack Offsets. L 5.4.2 Vertical Stack Offsets. L 5.5 Horizontal Stack Offset and Horizontal Branch Connections. L 6.0 Vent System Sizing. L 6.1 Size of Vents. L 6.2 Vent Stack. L 6.3 Branch Vents. L 6.4 Venting Horizontal Offsets. L 6.4.1 Venting Upper Section. L 6.4.2 Venting Lower Section. L 7.0 Vacuum Drainage Systems. L 7.1 Vacuum drainage systems shall be considered engineered systems and shall comply with the requirements of L 1.0 and L 2.0. L 7.2 Vacuum drainage systems, including piping tank assemblies, vacuum pump assembly, and other components necessary for the proper function of the system shall be engineered and installed in accordance with the manufacturer’s specifications. L 7.3 Fixtures. L 7.4 Drainage Load. L 7.5 Water Supply Fixture Units. L 7.6 Traps and Cleanouts. L 8.0 Circuit Venting. L 8.1 Circuit Vent Permitted. L 8.1.1 Multiple Circuit-Vented Branches.
473	L 8.2 Vent Size and Connection. L 8.3 Slope and Size of Horizontal Branch. L 8.3.1 Size of Multiple Circuit Vent. L 8.4 Relief Vent. L 8.4.1 Connection and Installation. L 8.4.2 Fixture Drain or Branch. L 8.5 Additional Fixtures. L 9.0 Single-Stack Vent System. L 9.1 Where Permitted. L 9.2 Stack Size. L 9.2.1 Stack Vent. L 9.3 Branch Size. L 9.4 Length of Horizontal Branches. L 9.4.1 Water closets shall be no more than four (4) feet (1,219 mm) horizontally from the stack. L 9.4.2 Fixtures other than water closets shall be not less than twelve (12) feet (3,658 mm) horizontally from the stack. L 9.4.3 The length of any vertical piping from a fixture trap to a horizontal branch shall not be considered in computing the fixture’s horizontal distance from the stack. L 9.5 Maximum Vertical Drops From Fixtures. L 9.6 Additional Venting Required.
474	L 9.7 Stack Offsets. L 9.8 Separate Stack Required. L 9.9 Sizing Building Drains and Sewers.
476	Useful Tables Conversion Table
478	Areas and Circumferences of Circles
479	Flow in Partly Filled (One-Half Full) Pipes
480	Flow in Partly Filled (Full) Pipes
481	Metric System General Comments
482	Metric System (International System of Units – SI)
484	Title 54 Professions, Vocations, and Businesses — Chapter 26 Plumbing and Plumbers § 54-2601 Declaration of Policy and Purpose of Act. § 54-2602 Exceptions.
485	§ 54-2603 Plumbing. § 54-2604 Plumbing Systems.
486	§ 54-2605 Idaho Plumbing Board. § 54-2606 Powers and Duties of the Idaho Plumbing Board.
487	§ 54-2607 Administrator of the Division of Building Safety — Powers and Duties. § 54-2608 Revocation of Certificates of Competency — Suspension — Refusal to Renew.
488	§ 54-2609 Character of Examination — Certification. § 54-2610 Certificate a Prerequisite. § 54-2611 Classification of Competency. § 54-2612 Examinations — Time and Place — Notification. § 54-2613 Application for Examination. § 54-2614 Application and Registration Fees.
489	§ 54-2614A Apprentice and Specialty Apprentice Registration and Renewal. § 54-2615 Certificate of Competency. § 54-2616 Fees for Certificates — Prorating. § 54-2617 Certificate Expiration — Renewal — Rules for Staggered Schedule. § 54-2618 Certificate to be Displayed and Certificates of Competency and Registration Carried or in Vicinity of Work Site. § 54-2619 Municipal Fees for Permits, Inspections —Exceptions.
490	§ 54-2620 Permits Required — Exceptions. § 54-2621 Work not Requiring Permits. § 54-2622 Permits — Application — Requirements. § 54-2622A Inspections of Modular Buildings —When Authorized — Approval and Certification. § 54-2623 Fee — Permit — Inspection. § 54-2624 Inspection by Agent — Tests. § 54-2625 Approval and Certification of Inspection.
491	§ 54-2626 Notification for Inspection — Fee for Reinspection § 54-2627 Appointment of Inspectors — Qualifications— Unlawful Practices. § 54-2628 Violation — Misdemeanor. § 54-2629 Attorney General — Prosecuting Attorneys. § 54-2630 Plumbing Board Fund Created.
492	IDAPA 07 Title 02 Chapter 02 – 07.02.02 – Rules Governing Plumbing Permits 000 Legal Authority. 001 Title and Scope. 01 Title. 02 Scope. 002 Written Interpretations. 003 Administrative Appeals. 004 — 009 (Reserved). 010 Definitions. 01 Division. 02 Fixture. 03 Board. 011 Permits. 01 Serial Number. 02 Plumbing Contractors. 03 Home Owners, Commercial, Industrial, and Others. 04 Expiration of Permit. 012 — 999 (Reserved).
494	IDAPA 07 Title 02 Chapter 03 – 07.02.03 – Rules Governing Permit Fee Schedule 000 Legal Authority. 001 Title and Scope. 002 Written Interpretations. 003 Administrative Appeals. 004 — 010 (Reserved). 011 Fee Schedule. 01 New Residential – Single Family Dwelling. 02 New Residential – Multi-Family Dwelling. 03 Existing Residential. 04 Other Installations Including Industrial and Commercial. 05 Requested Inspections. 06 Additional Fees and Re-Inspection Fees.
495	07 Plan Checking Fee. 08 Mobile Homes. 09 Mobile Home Parks and/or RV Parks. 10 Residential. 11 Water Conditioners. 12 Sewer and Water Permit Fees. 13 Non-residential. 14 Nonresidential Sewer and Water Service Lines Permit Fees. 15 Technical Service Fee. 16 Multipurpose Residential Fire Sprinkler and Domestic Water Supply System Fee. 17 Gray Water Systems. 18 Reclaimed Water Systems. 012 – 999 (Reserved).
496	IDAPA 07 Title 02 Chapter 04 – 07.02.04 – Rules Governing Plumbing Safety Inspections 000 Legal Authority. 001 Title and Scope. 002 Written Interpretations. 003 Administrative Appeals. 004 — 010 (Reserved). 011 Required Inspections. 01 Ground Work Inspection Tags. 02 Rough-In Inspection Tags. 03 Final Inspection Tags. 04 Inspection Tags for Unacceptable Plumbing. 012 Requirements in Addition to the Plumbing Code. 01 Cross Connection Control Manual. 02 Jurisdiction/Septic Systems. 03 Waste Disposal. 013 — 999 (Reserved).
498	IDAPA 07 Title 02 Chapter 05 – 07.02.05 – Rules Governing Plumbing Safety Licensing 000 Legal Authority. 001 Title and Scope. 002 Written Interpretations. 003 Administrative Appeals. 004 — 009 (Reserved). 010 Licensure History. 011 Apprentice Registration. 01 Work Requirements. 02 Schooling Requirements. 03 Journeyman Examination.
499	012 Journeyman. 01 Qualifications for Journeyman Plumber. 02 Examination. 013 Plumbing Contractor. 01 Qualifications for Plumbing Contractor. 02 Restrictive Use of Contractor Certificate. 03 Previous Revocation. 04 Reviving an Expired License. 05 Effective Dates. 06 Plumbing Contractor’s Responsibility. 07 Advertising.
500	014 Applications. 015 Examinations. 01 Examinations for Journeyman Plumber. 02 Frequency of Conducting of Examinations. 03 Professional Testing Services. 016 Certificates of Competency – Issuance, Renewal, Expiration, Revival – Fees. 01 Issuance. 02 Renewal.
501	03 Expiration – Revival. 017 SPECIALTY PLUMBING LICENSES. 01 Qualified Journeyman Plumbers. 02 Minimum Experience Requirements. 03 Mobile Home Set-Up or Installers. 04 Applications for Specialty Licenses. 05 Examinations for Specialty Licenses. 06 Fees. 018 Specialty Plumbing Licenses. 01 Qualified Journeyman Plumbers. 02 Qualified Apprentice Plumbers. 03 Minimum Experience Requirements. 019 Appliance Plumbing Specialty License.
502	04 Special Grandfathering Provision. 05 Applications for Specialty Licenses. 06 Examinations for Specialty Licenses. 07 Fees. 08 Scope of Work Permitted. 01 Qualified Journeyman Plumbers. 02 Qualified Apprentice Plumbers. 03 Minimum Experience Requirements.
503	04 Special Grandfathering Provision. 05 Applications for Specialty Licenses. 06 Examinations for Specialty Licenses. 07 Fees. 08 Scope of Work Permitted. 020 – 999 (Reserved).
504	IDAPA 07 Title 02 Chapter 06 – 07.02.06 – Rules Concerning Idaho State Plumbing Code 000 Legal Authority. 001 Title and Scope. 002 Written Interpretations. 003 Administrative Appeals. 004 – 010 (Reserved). 011 Adoption and Incorporation by Reference of the 2003 Idaho State Plumbing Code. 01 Section 218. 02 Section 315.4. 03 Section 316.1.6 Solvent Cement Plastic Pipe Joints. 04 Section 402.4 Metered Faucets. 05 Section 412.0 Minimum Number of Required Fixtures. TABLE
505	06 Table 4-1 Minimum Plumbing Facilities.
506	Table 412.1 Minimum Plumbing Facilities
510	07 Section 418.0. 08 Section 504.1 Inspection of Chimneys or Vents. 09 Section 508.14 Installation in Residential Garages. 10 Section 603.4.16.5 Residential Sprinkler System. 11 Section 604.1. Materials. 12 Section 609.1 Installation. 13 Section 609.4 Testing. 14 Section 609.10 Water Hammer. 15 Table 6-5 and Appendix Table A-2. 16 Section 610.2. 17 Table 6-8 Sizing of Residential Softeners. 18 Table 7-3 Drainage Fixture Unit Valves (DFU). 19 Section 703.1. 20 Section 703.2 and 710.5. Add Exception.
511	21 Section 704.2. 22 Section 704.3. 23 Table 7-5. 24 Section 707.0 Cleanouts. 25 Section 707.4 Cleanouts. 26 Section 710.9. 27 Section 712.1 Media. 28 Section 717.0 Size of Building Sewers. 29 Section 801.2.3. 30 Section 801.4. Connections from Water Distribution System. 31 Section 807.4. 32 Section 906.1. 33 Section 908. Exception – Vertical Wet Venting. 34 Section 909.0. 35 Section 1002.3. 36 Section 1007.0 Trap Seal Protection.
512	37 Section 1016.1 Where Required. 38 1601.0 Gray Water Systems – General. 012 – 999 (RESERVED)
514	IDAPA 07 Title 02 Chapter 07 – 07.02.07 – Rules Governing Civil Penalties 000 Legal Authority. 001 Title and Scope. 01 Title. 02 Scope. 002 Written Interpretations. 003 Administrative Appeals. 004 Incorporation by Reference. 005 Office – Office Hours – Mailing Address and Street Address. 006 – 010 (Reserved). 011 Civil Penalties. 01 Plumbing Contractor. 02 Certification or Registration. 03 Failure to Disclose. 04 Performance Outside Scope of Certificate. 05 Fees, Permits and Inspections. 06 Corrections.
515	07 Gross Violation. 08 Judicial Review. 012 – 999 (Reserved).
516	Index – A – – B –
517	– C –
518	– D – – E – – F –
519	– G –
520	– H – – I –
521	– J – – K – – L – – M –
522	– N – – O – – P –
523	– Q – – R –
524	– S –
526	– T – – U –
527	– V – – W –
528	– X – – Y – – Z –

Published By	Publication Date	Number of Pages
ID	2009	539


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Standard Title	Idaho State Plumbing Code
Published Code	ID
Publication Date	2009
Pages Count	539

ID IdahoPlumbingCode 2009

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