Nevada Administrative Code
Chapter 444 - Sanitation
PUBLIC SPAS
Construction of Spa
Section 444.474 - Supply of water

1. The water supply of the spa must be from an approved source and meet the requirements of the Health Division for potable water, except that the health authority may approve the use of natural hot or mineral waters.

2. A fillspout, if used, must have an air gap of not less than twice the pipe diameter, or 3 inches (7.62 cm) above the overflow of the spa, whichever is greater, and the fillspout must not protrude more than 2 inches (5.08 cm) beyond the edge of the spa.

3. The fillspout, if used, must be properly shielded so as not to create a hazard.

4. A surge tank or receptor may be installed for filling the spa if the spa water will freely overflow at deck level, the top of the surge tank or the top of the receptor before coming in contact with the water supply outlet.