- a) All water closets shall either be of stainless steel (Type 304) construction, including framework, reinforcing and interior piping, or be vitreous china complying with ASME A112.19.2/CSA B45.1.
b) If stainless steel water closets are used, they shall comply with the following:
- 1) The bowl and flushing rim shall not be less than 14 gauge.
- 2) The water closet shall have a minimum of a 3-inch diameter, fully enclosed stainless steel P-trap and shall pass a 2⅛-inch diameter ball.
- 3) All welds shall be ground smooth, and exterior surfaces polished.
- 4) Integral contoured seats that are self-draining and crevice freeshall be a part of the water closet.
- c) All water closets shall have push button flush valves.
(Source: Amended at 38 Ill. Reg. 9940, effective April 24, 2014)