(A) All water piping distributing domestic water supply shall be entirely independent of any piping system conveying another water supply.
(B) All water storage tanks shall be properly covered to prevent entrance to any contaminating material and no soil or waste pipe shall pass directly over such water tanks without waterproof protection.
(C) No plumbing fixture or device shall be installed which will provide a cross connection under any condition between the water distribution system and the drainage system soil or waste pipe or which would allow backflow or back siphonage of sewage or waste material into the water supply system.
(D) All fixtures where potable water can be obtained shall have over-rim supplies and all fixtures having under-rim supplies shall be supplied from a sub-source which cannot flow back into the potable water supply.
(E) Every water closet, urinal, sink, basin, wash tray, bath tub, and all other fixtures that require a waste connection to the sewer shall be separately trapped and vented above the highest fixture. Traps shall be placed as near to the fixtures as possible and in no case more than two feet from fixture outlet. Vents shall be placed as close to traps as possible, but in no case at a greater distance than 18 inches.
(F) Refrigerator drains shall not be connected directly to the sewer, but shall be trapped and drained into an open fixture, which shall be trapped and connected to the sewer.
(G) The overflow pipe from a cistern shall in no case be connected to the sewer.
(H) The overflow pipe from fixture shall in all cases be connected to the fixture side of the trap.
(I) Floor drains shall be of a deep seal pattern with no less than a two and one-half inch seal.
(J) Waste from a lavatory shall in no case be less than one and one-fourth inch. Waste from tubs, sink, and shower shall in no case be less than one and one-half inch. Waste from toilet shall be four inches, except plastic which shall be three inches fitted with reducing closet ring flange four by three to receive the fixture horn.
(K) No residence or building located within 150 feet of any sewer shall install any private system for sewer disposal.
(L) Where a wash rack is installed for the purpose of washing automobiles, it shall be installed with a bucket type trap of sufficient size.
(Ord. 401, passed 10-21-1971) Penalty, see § 151.99