(a) Installation and Maintenance.
(1) Plumbing shall be sized and installed in accordance with Chapter 4101 of the Administrative Code as amended.
(2) A non-potable water system may be used for flushing water closets, urinals, and other fixtures not requiring potable water. The non-potable water shall not be accessible for drinking or culinary purposes. A non- potable system shall be separated with no points of connection and be readily distinguishable from the potable system by the proper color coding or so marked at the outlets to be readily identified as non-potable.
(3) Grease interceptors shall be installed in accordance with Chapter 4101 of the Administrative Code as amended. The grease interceptor shall be inspected frequently and cleaned as often as necessary to retain the grease wastes. The materials removed in cleaning shall be removed from the premises for disposal in an appropriate method and not deposited in the plumbing or sewerage systems. The size will be based on the type of operation and the fixture load.
(4) Garbage disposal units, if installed, shall not be permitted to discharge into the grease interceptor in accordance with Chapter 4101 of the Administrative Code as amended. A garbage disposal unit may be installed in a scrap sink but shall not be installed in a sink used for washing, rinsing, or sanitizing utensils or equipment.
(5) In new or remodeled establishments, at least one utility sink or curbed cleaning facility with properly trapped and vented floor drain shall be provided for the cleaning of mops or similar wet floor cleaning tools and for the disposal of mop water or similar liquid wastes. Mobile food establishments need not have a utility sink.
(b) Backflow Control - Back-Siphonage and Cross-Connections.
(1) Any potable water system, subject to back-siphonage and cross connections, shall be properly equipped with backflow prevention devices or vacuum breakers or shall be air gapped. Backflow prevention devices and vacuum breakers shall meet accepted "American Society of Sanitary Engineering” standards as contained in Chapter 4101 of the Administrative Code, as amended. Air gapping, where applicable, shall conform to accepted engineering practice.
(2) The potable water supply to outlets, fixtures, equipment, and devices where water is made available for human consumption or culinary purposes shall be protected from back-siphonage.
(3) All sinks and equipment used for preparation, processing, or storage of food shall have drains indirectly connected to the soil or waste system. All other equipment, such as utensil washing sinks and dishwashers, shall be directly connected and properly trapped and vented.
(Res. 1-95. Passed 1-19-95.)