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The maximum water consumption flow rates and quantities for all plumbing fixtures and fixture fittings shall be in accordance with Table 18-29-604.4. Water consumption for urinals listed in the following exceptions shall not be greater than 1.5 gallons (5.7 L) per flushing cycle.
Exceptions:
1. Blowout design fixtures.
2. Penalware.
3. Clinical sinks.
4. Service sinks.
5. Emergency showers.
Plumbing Fixture or Fixture Fitting | Maximum Flow Rate or Quantity a |
Plumbing Fixture or Fixture Fitting | Maximum Flow Rate or Quantity a |
Lavatory, private | 2.5 gpm at 80 psi |
Lavatory, public | 0.5 gpm at 80 psi |
Lavatory, public, metering or self-closing | 0.5 gallons per metering cycle |
Shower head | 2.5 gpm at 80 psi |
Sink faucet | 2.5 gpm at 60 psi |
Urinal | 1.0 gallons per flushing cycle |
Water closet | 1.6 gallons per flushing cycle |
For SI: 1 gallon = 3.785 L, 1 gpm = 3.785 L/m, 1 psi = 6.895 kPa
a Consumption tolerances shall be determined from referenced standards
* Editor's note โ Coun. J. 3-28-01, p. 55444, ยง 1, did not provide for a Section 18-29-604.4.1.
Water consumption for water closets listed in the following exceptions shall not be greater than 4 gallons (15 L) per flushing cycle.
Exceptions:
1. Water closets provided for the public in theaters, nightclubs, restaurant, halls, museums, coliseums, arenas, churches, schools, stadiums and similar occupancies.
2. Water closets provided for patients and residents in, hospitals, nursing homes, sanitariums and similar occupancies.
3. Water closets provided for inmates and residents in prisons, asylums, reformatories and similar occupancies.
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