§ 18-29-802


Indirect Wastes.

§ 18-29-802.1 Where required.

Indirect sanitary wastes shall be installed as follows: Waste piping from filters, refrigerators, ice boxes, steam tables, egg boilers, coffee makers, bottleholders, ice cube containers, or any equipment or other receptacle where food or drink is stored shall discharge to the drainage piping system through an air gap into a waste receptor. The minimum size shall be 1 inch (25 mm) and the maximum length of the indirect waste shall not exceed 15 feet (4.57 m) and shall be provided with cleanouts at every 90 degree turn and shall be accessibly located. Indirect wastes shall be piped to the waste receptor with material that is required by this chapter. Waste receptors serving indirect pipes connected to equipment shall not be installed in any toilet room, closet, store room or any inaccessible space. Each waste receptor shall be trapped and vented as required by this chapter. The air gap shall not be less than 1 inch.

§ 18-29-802.1.1 Deliberately omitted.

§ 18-29-802.1.2 Deliberately omitted.

§ 18-29-802.1.3 Potable clear-water waste.

Where devices and equipment, such as sterilizers, swimming pools 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.

§ 18-29-802.1.4 Nonpotable clear-water waste.

Where devices and equipment, such as safe pans, drip pans, process tanks, filters, drips and boilers, discharge nonpotable water to the building drainage system, the discharge shall be through an indirect waste pipe by means of an air break or an air gap.

§ 18-29-802.1.5 Waste piping.

Waste piping from aspirators, sterilizers or any other equipment which would produce a partial vacuum by cooling shall discharge to the drainage piping system through an air gap into a waste receptor. The minimum size shall be 1 inch (25 mm) and the maximum length of the indirect waste shall not exceed 15 feet (4.57 m) and shall be provided with cleanouts at every 90 degree turn which are accessibly located. Each indirect waste pipe shall be individually piped to the waste receptor with material that is required by this chapter. Waste receptors serving indirect pipes connected to the above equipment shall be located in the same room. Each waste receptor shall be trapped and vented as required by this chapter. The air gap shall be not less than two times the diameter of the indirect waste pipe.

§ 18-29-802.1.6 Dishwashing machine.

Dishwashing machines shall be indirectly connected, except when located adjacent to a floor drain, whereby the waste may be connected directly on the sewer side of the floor drain trap, and the fixture shall be trapped and vented as required by this chapter; provided, however, that no other waste or soil drainage line be permitted between the floor drain waste connection and the fixture drain. All indirectly connected dishwashing machine wastes shall be provided with a vented trap located as close as possible to the dishwashing machine and in the same room. The air gap shall not be less than 1 inch (25 mm).

§ 18-29-802.1.7 Sinks.

Commercial dishwashing sinks, pot washing sinks, pre-rinse sinks, silverware sinks, bar sinks, soda fountain sinks, and other similar fixtures shall be indirectly connected except when located adjacent to a floor drain, whereby the waste may be connected directly on the sewer side of the floor drain trap, and the fixture shall be trapped and vented as required by this chapter; provided, however, that no other drainage line be permitted between the floor drain waste connection and the fixture drain. All indirectly connected sinks shall be provided with a vented trap located as close as possible to the sink and in the same room. The piping from the equipment to the air gap shall not exceed 5 feet (1,525 mm) and shall be of material as required by this chapter. The air gap shall be a minimum of 1 inch (25 mm).

§ 18-29-802.2 Deliberately omitted.

§ 18-29-802.3 Waste receptors.

Every waste receptor shall be of an approved type.

§ 18-29-802.3.1 Open hub waste receptors.

Waste receptors shall be permitted in the form of a hub or pipe extending not less than 1 inch (25 mm) above a water-impervious floor and are not required to have a strainer.

§ 18-29-802.4 Standpipes.

Standpipes shall be individually trapped. Standpipes shall extend a minimum of 18 inches (457 mm) and a maximum of 42 inches (1,066 mm) above the trap. Access shall be provided to all standpipe and drains for rodding.