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This article shall govern matters concerning indirect waste piping and special wastes. This article shall further control matters concerning food handling establishments, sterilizers, clear-water wastes, swimming pools, methods of providing air breaks or air gaps, and neutralizing devices for corrosive wastes.
All devices, appurtenances, appliances and apparatus intended to serve some special function, such as sterilization, distillation, processing, cooling, or storage of ice or foods, and that discharge to the drainage system, shall be provided with protection against backflow, flooding, fouling, contamination and stoppage of the drain.
Food-handling equipment in other than dwelling units and sleeping units, clear-water waste, humidifiers, commercial dishwashing machines and utensil, pot, pan and dishwashing sinks shall discharge though an indirect waste pipe as specified in Sections 18-29-802.1.1 through 18-29-802.1.7. Fixtures not required to be indirectly connected by this section and the exception to Section 18-29-301.6 shall be directly connected to the plumbing system in accordance with Article 7.
(Amend Coun. J. 10-14-21, p. 37722, Art. VIII, § 1)
Equipment and fixtures utilized for the storage, preparation and handling of food, other than in dwelling units and sleeping units, shall discharge through an indirect waste pipe by means of an air gap. Each well of a multiple-compartment sink shall discharge independently to a waste receptor.
Exception: Where a sink is within 4 feet (1219 mm) horizontally of and located in the same room as a floor drain, the sink waste pipes may be directly connected on the sewer side of the floor drain trap, provided that the fixture waste pipes are trapped and vented as required by this chapter. No other fixture waste pipe shall be connected between the floor drain trap and the fixture being protected.
(Amend Coun. J. 10-14-21, p. 37722, Art. VIII, § 1)
Floor drains located within walk-in refrigerators or freezers in food service and food establishments shall be indirectly connected to the sanitary drainage system by means of an air gap. Where a floor drain is located within an area subject to freezing, the waste line serving the floor drain shall not be trapped and shall indirectly discharge into a waste receptor located outside of the area subject to freezing.
Exception: Where protected against backflow by a backwater valve, such floor drains shall be indirectly connected to the sanitary drainage system by means of an air break or air gap.
(Amend Coun. J. 10-14-21, p. 37722, Art. VIII, § 1)
Where devices and equipment, such as sterilizers and relief valves, discharge potable water to the building drainage system, the discharge shall be through an indirect waste pipe by means of an air gap.
Where wastewater from swimming pools, backwash from filters and water from pool deck drains discharge to the building drainage system, the discharge shall be through an indirect waste pipe by means of an air gap.
(Amend Coun. J. 10-14-21, p. 37722, Art. VIII, § 1)
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