(A) General. A gasoline and oil trap shall be provided on the waste from all garages, automobile wash floors, cleaning establishments or establishments from which gasoline, benzine or other similar substance may be discharged. The trap shall be installed on the waste pipe above its junction with any other pipe or receptacle containing sewage. The passing of human or animal excrement through such a trap is prohibited.
(B) Sumps and receiving tanks. In a building in which the whole or part of the plumbing system lies below the house connection to the public sewer the outlet from the plumbing system or part thereof shall discharge into a sump or receiving tank from which the sewage shall be pumped through a pipe to the house connection or to the public sewer.
(1) The sump or receiving tank shall be adequate in capacity. It should be discharged not less frequently than once each hour. It shall be constructed in a water-tight and substantial manner of masonry, vitrified clay or metal. It shall be provided with an air-tight cover. Any pipe discharging into the sump or receiving tank shall not be submerged.
(2) No storm, surface or ground water shall be conducted to a sump or tank receiving domestic sewage. Such water may be conducted to a separate sump for the purpose of pumping it to the surface of the ground or to a storm sewer if such exists.
(Prior Code, § 51.062) Penalty, see § 51.999