Water closets shall conform to the provisions of Sections P-706.1.1 through P706.1.3.
Water closet bowls shall be siphon-jet, reverse trap, washdown, or blowout type with floor
outlet; or siphon-jet or blowout type with wall outlet. Water-closet bowls and traps shall be made in one piece and
shall be provided with internal flushing rims so constructed as to flush the entire interior of the bowl.
In rooming houses where two or more water closets are in a group, in lodging houses,
factories, workshops, public buildings, hospitals, convalescent homes, nursing homes, and all institutions of similar
character, and in all places where water closets and urinals are for public use, the water closet bowls shall be of an
elongated type with an open front seat.
Pursuant to the regulations of the Delaware River Basin Commission
and Section P-720, all water closets to be replaced in existing dwellings or installed in new dwellings shall be of
1.6-gallon flush type. All replaced or new water closets in commercial buildings shall be either tank or flushometer
type using 1.6 gallons of water.
This mandate shall be in effect until such time that the 1.6-gallon flush is proven
unsatisfactory to the interior and exterior plumbing system, out to and including the curb trap, as determined by
the Department.