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18-29-417.4 Shower compartments.
   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.
18-29-417.4.1 Deliberately omitted.
18-29-417.4.2 Wall area.
   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.
18-29-417.4.3 Shower installation.
   Traps shall be constructed so that the pan is fastened to the trap at the seepage entrance, making a water-tight joint between the pan and the trap. Shower receptacle waste outlets shall be at least 2 inches (50 mm) in diameter and have a removable strainer.
18-29-417.4.4 Water temperature safety.
   All shower compartments and shower-bath combinations shall be provided with an automatic safety water mixing device to prevent sudden unanticipated changes in water temperature or excessive water temperatures. The automatic safety water mixing device shall be either thermostatic, pressure balance, or combination controlled, in accordance with ANSI/ASSE 1016-1990, and designed with a maximum handle rotation limit/stop, adjusted to a maximum setting of 115°F (46.1°C) at the time of installation. The temperature of mixed water provided to multi-shower units or gang showers shall be controlled by a master automatic safety water mixing device or the mixed water temperature for such showers shall be individually regulated by automatic safety mixing valves for each shower unit. A hot water heater thermostat shall not be an acceptable alternative water temperature control device.
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