Flush Valves

Section 890 Section 890.1780  Flush Valves a)         All flush valves for water closets or urinals shall conform with Sections 890.650(e) and 890.660(b) of this Part. b)         All flush valves shall feature rubber diaphragm operation, non-hold-open push buttons (and handles), union check stops and vacuum breakers as approved in this Part.  (See Sections 890.1130(c) and 890.1140(a) and (b).) c)         Flush valves shall be concealed wherever possible.