Nevada Administrative Code
Chapter 444 - Sanitation
PUBLIC BATHING PLACES
General Standards for Construction
Section 444.146 - Connections for supply and disposal of water

1. No direct mechanical connection with a domestic water supply may be made to a public bathing or swimming facility, a chlorinator or the system of piping for the facility, unless it is protected against backflow in a manner approved by the health authority. All pools must be equipped with acceptable provisions, such as overfall fillspouts, surge tanks or receptors, for adding makeup water.

2. Water used to fill any pool must be supplied by an overfall fillspout providing an airgap of not less than 6 inches (15 centimeters) between the flood level at the pool and the lowest point of the fillspout, or an overfall supply to a surge tank or receptor wherein the water will freely overflow at deck level or the top of the surge tank or receptor before coming in contact with the water supply outlet.

3. Sanitary sewage from the bathhouse must be discharged into a sewage system approved by the health authority.