2903. WATER-SUPPLY SYSTEM

P2903 WATER-SUPPLY SYSTEM Strike Table P2903.2 of the International Residential Code in its entirety and insert new Table P2903.2 in the Residential Code in its place to read as follows: TABLE P2903.2 MAXIMUM FLOW RATES AND CONSUMPTION FOR PLUMBING FIXTURES AND FIXTURE FITTINGSb PLUMBING FIXTURE OR FIXTURE FITTING MAXIMUM FLOW RATE OR QUANTITY Lavatory faucet and bar sink faucet 1.5 gpm at 60 psi and WaterSense labeled Shower heada 2.0 gpm at 80 psi and WaterSense labeled Sink faucet, kitchen 2.2 gpm at 60 psi Water closet, tank typec 1.28 gallons per flushing cycle and WaterSense labeled Water closet, flushometer type 1.28 gallons per flushing cycle For SI: 1 gallon per minute = 3.785 L/m, 1 pound per square inch = 6.895 kPa a. A handheld shower spray is also a shower head. b. Consumption tolerances shall be determined from referenced standards. c. Dual Flush Toilets - The effective flush volume shall not exceed 1.28 gallons (4.8 liters). The effective flush volume is defined as the composite, average flush volume of two reduced flushes and one full flush. Flush volumes will be tested in accordance with ASME A112.19.2 and ASME A112.19.14. SOURCE: Final Rulemaking published at 67 DCR 6033 (May 29, 2020 – Part 2). The District of Columbia Residential Code (2017), referred to as the “Residential Code,” consists of the 2015 edition of the International Residential Code (International Residential Code), published by the International Code Council (ICC), as amended by the Residential Code Supplement of 2017 (12-B DCMR). The International Residential Code is copyrighted by the ICC and therefore is not republished here. However, a copy of the text may be obtained at https://codes.iccsafe.org/public/document/IRC2015. District of Columbia Municipal Regulations Residential Code Supplement of 2017 12-B DCMR § P2903