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Earlier editions: 20222019

Chapter 8 — INDIRECT WASTES

804.1 Standpipe Receptors. Plumbing fixtures or other

California Plumbing Code (Title 24, Part 5) · 2025 edition · updated 2026-09-10 · California

Italicized text is a California amendment to the model code, as printed in the official publication.

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. No standpipe receptor for a clothes washer shall extend more than 30 inches (762 mm), or not less than 18 inches (457 mm) above its trap weir. No trap for a clothes washer standpipe receptor shall be installed below the floor, but shall be roughed in not less than 6 inches (152 mm) and not more than 18 inches (457 mm) above the floor. No indirect waste receptor shall be installed in a toilet room, closet, cupboard, or storeroom, or in a portion of a building not in general use by the occupants thereof; except standpipes for clothes washers shall be permitted to be installed in toilet and bathroom areas where the clothes washer is installed in the

same room.

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▸Contents — California Plumbing Code (Title 24, Part 5)
California Plumbing Code (Title 24, Part 5)
  1. Chapter 1 — GENERAL CODE PROVISIONS
  2. Chapter 2 — DEFINITIONS
  3. Chapter 3 — GENERAL REGULATIONS
  4. Chapter 4 — PLUMBING FIXTURES AND FIXTURE FITTINGS
  5. Chapter 5 — WATER HEATERS
  6. Chapter 6 — WATER SUPPLY AND DISTRIBUTION
  7. Chapter 7 — SANITARY DRAINAGE
  8. ▸Chapter 8 — INDIRECT WASTES
    Overview
    1. 801.1 Applicability. This chapter shall govern the materials,
    2. 801.2 Air Gap or Air Break Required. Indirect waste piping sha…
    3. 801.3 Food and Beverage Handling Establishments.
    4. 801.4 Bar and Fountain Sink Traps. Where the sink in a
    5. 801.5 Connections from Water Distribution System.
    6. 801.6 Sterilizers. Lines, devices, or apparatus such as stills,
    7. 801.7 Drip or Drainage Outlets. Appliances, devices, or
    8. 802.1 General. No plumbing fixtures served by indirect
    9. 803.1 Materials. Pipe, tube, and fittings conveying indirect
    10. 803.2 Copper and Copper Alloys. Joints and connections in copp…
    11. 803.3 Pipe Size and Length. Except as hereinafter provided, th…
    12. 804.1 Standpipe Receptors. Plumbing fixtures or other
    13. 805.1 General. Indirect waste connections shall be provided
    14. 806.1 General. Appliances, devices, or apparatus such as
    15. 807.1 Non-Classed Apparatus. Commercial dishwashing
    16. 807.2 Undiluted Condensate Waste. Where undiluted
    17. 807.3 Domestic Dishwashing Machine. No domestic
    18. 808.1 General. Where permitted by the Authority Having
    19. 809.1 General. Drinking fountains shall be permitted to be
    20. 810.1 High-Temperature Discharge. No steam pipe shall
    21. 810.2 Sumps, Condensers, and Intercepting Tanks.
    22. 810.3 Cleaning. Sumps and condensers shall be provided
    23. 810.4 Strainers. An indirect waste interceptor is receiving
    24. 811.1 Pretreatment. Chemical or liquid industrial wastes
    25. 811.2 Waste and Vent Pipes. Each waste pipe receiving or
    26. 811.3 Joining Materials. Joining materials shall be of
    27. 811.4 Access. Where practicable, the piping shall be readily a…
    28. 811.5 Permanent Record. The owner shall make and keep
    29. 811.6 Chemical Vent. No chemical vent shall intersect
    30. 811.7 Discharge. Chemical wastes shall be discharged in a
    31. 811.8 Diluted Chemicals. The provisions of this section
    32. 812.1 General. Water lifts, expansion tanks, cooling jackets, …
    33. 813.1 General. Pipes carrying wastewater from swimming
    34. 814.1 Condensate Disposal. Condensate from air washers, air-co…
    35. 814.2 Condensate Control. Where any equipment or
    36. 814.3 Condensate Waste Pipe Material and Sizing.
    37. 814.4 Appliance Condensate Drains. Condensate drain
    38. 814.5 Point of Discharge. Air-conditioning condensate
    39. 814.6 Condensate Waste from Air-Conditioning
    40. 814.7 Plastic Fittings. Female plastic screwed fittings shall
  9. Chapter 9 — VENTS
  10. Chapter 10 — TRAPS AND INTERCEPTORS
  11. Chapter 11 — STORM DRAINAGE
  12. Chapter 12 — FUEL GAS PIPING
  13. Chapter 13 — HEALTH CARE FACILITIES AND MEDICAL GAS AND MEDICA…
  14. Chapter 14 — FIRESTOP PROTECTION
  15. Chapter 15 — ALTERNATE WATER SOURCES FOR NONPOTABLE APPLICATIONS
  16. Chapter 16 — NONPOTABLE RAINWATER CATCHMENT SYSTEMS
  17. Chapter 17 — REFERENCED STANDARDS
  18. Appendix A — RECOMMENDED RULES FOR SIZING THE WATER SUPPLY SYS…
  19. Appendix B — EXPLANATORY NOTES ON COMBINATION WASTE AND VENT S…
  20. Appendix C — ALTERNATE PLUMBING SYSTEMS
  21. Appendix D — SIZING STORM WATER DRAINAGE SYSTEMS
  22. Appendix E — MANUFACTURED/MOBILE HOME PARKS AND RECREATIONAL V…
  23. Appendix F — FIREFIGHTER BREATHING AIR REPLENISHMENT SYSTEMS
  24. Appendix G — SIZING OF VENTING SYSTEMS
  25. Appendix H — PRIVATE SEWAGE DISPOSAL SYSTEMS
  26. Appendix I — INSTALLATION STANDARDS
  27. Appendix J — COMBINATION OF INDOOR AND OUTDOOR COMBUSTION AND …
  28. Appendix K — POTABLE RAINWATER CATCHMENT SYSTEMS
  29. Appendix L — SUSTAINABLE PRACTICES
  30. Appendix M — PEAK WATER DEMAND CALCULATOR
  31. Appendix N — IMPACT OF WATER TEMPERATURE ON THE POTENTIAL FOR …
  32. Appendix O — NON-SEWERED SANITATION SYSTEMS
  33. Appendix P — PROFESSIONAL QUALIFICATIONS
  34. Appendix Q — INDOOR HORTICULTURAL FACILITIES
  35. Appendix R — TINY HOUSES
  36. Appendix S — ONSITE STORMWATER TREATMENT SYSTEMS

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