TITLE 77: PUBLIC HEALTH
CHAPTER I: DEPARTMENT OF PUBLIC HEALTH
SUBCHAPTER r: WATER AND SEWAGE
PART 890 ILLINOIS PLUMBING CODE
SECTION 890.1780 FLUSH VALVES
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.