Overflow outlets for gravity tanks shall be not less than four inches below the tank supply, shall discharge above and within six inches of a roof drain or floor drain, or shall discharge over an open water-supplied sink or other approved receptacle. Adequate overflow pipes properly screened against the entrance of insects or vermin shall be provided. In no case shall such overflows be connected directly to any drainage system. Furthermore, all relief valves for hot water heaters/boilers must have relief pipes the same size as the valve, be within six inches of the floor and be metal.
(Ord. 2005-30. Passed 3-15-05.)