1709.13 PLUMBING.
   (a)   Installation and Maintenance.
(1)   Plumbing shall be sized and installed as per Chapter 4101:2-51 of the Ohio Administrative Code.
(2)   A nonpotable water system may be used for flushing water closets, urinals and other fixtures not requiring potable water; provided, such water shall not be accessible for drinking or culinary purposes. A nonpotable system shall be designated by the proper color coding or so marked at outlets to be readily identified as nonpotable.
(3)   Grease interceptors shall be located immediately outside the building and readily accessible for cleaning unless impractical (waste lines too long), in which case they may be located adjacent to and outside the food preparation area or in the room in which food is prepared but contained in the dirty dish area.
(4)   Garbage disposal units, if installed, shall meet Rule 4101:2-51 24 of the Ohio Administrative Code and shall not be permitted to discharge into the grease interceptor.
(5)   In new or remodeled operations, at least one utility sink or curbed cleaning facility with a properly trapped and vented floor drain shall be provided and used for the cleaning of mops or similar wet floor cleaning tools and for the disposal of mop water or similar liquid wastes.
(6)   The use of lavatories and utensil washing, equipment washing, or food preparation sinks for the disposal of mop water or similar liquid waste is prohibited.
   (b)   Cross Connection - Back Siphonage and Backflow.
(1)   The potable water system shall be installed to conform to acceptable engineering practice and properly equipped with backflow prevention devices, vacuum breakers or air gapped. Backflow prevention devices and vacuum breakers shall meet accepted "American Society of Sanitary Engineering" standards as contained in Table (A) of Rule 4101:2-51-05 of the Ohio Administrative Code. 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 equipment used for preparation, processing or storage of food in establishments engaging in the preparation, storage, processing, selling, serving or otherwise handling of food or beverages shall have drains therefrom indirectly connected to the soil or waste system. All other equipment such as sinks and dishwashers shall be directly connected and properly trapped and vented.
(4)   Floor drains, when installed in cold storage facilities not subject to freezing, shall be indirectly connected as indicated in Paragraph (E) of Rule 4101:2-51-22 of the Ohio Administrative Code.
         (Res. 94. Passed 6-29-88.)