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Prefabricated showers and shower compartments shall conform to ANSI Z124.2, ASME A112.19.9 or CSA B45.5. Shower valves for individual showers shall conform to the requirements of Section 18-29-424.4.
Waste outlets serving showers shall be at least 2 inches (50 mm) in diameter and, for other than waste outlets in bathtubs, shall have removable strainers not less than 3 inches (75 mm) in diameter with strainer openings not less than 1/4 inch (6 mm) in minimum dimension. Where each shower space is not provided with an individual waste outlet, the waste outlet shall be located and the floor pitched so that waste from one shower does not flow over the floor area serving another shower. Waste outlets shall be fastened to the waste pipe in an approved manner.
Shower installation, water temperature, dimensions, materials, public or institutional showers, and wall areas shall comply with Sections 18-29-417.4.1 through 18-29-417.4.7.
The wall area above built-in tubs with installed shower heads and in shower compartments shall be constructed of smooth, noncorrosive and nonabsorbent waterproof materials to a height not less than 72 inches (1829 mm) above the room floor level, and not less than 70 inches (1778 mm) where measured from the compartment floor at the drain. Such walls shall form a water-tight joint with each other and with either the tub, receptor or shower floor.
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