Nevada Administrative Code
Chapter 444 - Sanitation
PUBLIC SPAS
Construction of Spa
Section 444.480 - Drains

Universal Citation: NV Admin Code 444.480

Current through September 16, 2024

1. Each spa must be provided with a drain at the deepest point to permit complete drainage. Outlets on the pump suction must be covered by suitable protective grates or antivortex covers which are securely fastened and cannot be removed except with tools.

2. The total velocity through grate openings must not exceed 1 1/2 feet per second (.5 meters per second) through an opening no greater than 1/2 square inch (1.3 square centimeters). Where only one main drain is provided, it must be an antivortex drain and velocity must not exceed 6 feet per second.

3. The location and design of spa outlets must incorporate at least one of the following methods for preventing outlet entrapment:

(a) The spa must contain at least two outlets separated by a minimum of 3 feet, or located on different surface planes within the spa.

(b) A hydrojet booster system that includes no fewer than two main drains separated by not less than 4 feet and connected to pipes of equal diameter. The system must not permit either drain to be cut off from the suction line. Drains for hydrojet booster systems must have antivortex covers as approved by the health authority.

(c) The spa's drainage system must include at least one antivortex outlet drain. In depths of 4 feet 6 inches (1.37 meters) or less the antivortex drain must not provide a tripping or stubbing hazard to the bather.

(d) The spa's drainage system must contain some other approved means to guard against outlet entrapment.

4. The main drains must be capable of taking at least 50 percent of the circulated flow.

Bd. of Health, Public Spa Reg. Art. 18 §§ 18.3-18.5, eff. 11-27-79-NAC A 11-2-88

NRS 439.200, 444.070

Disclaimer: These regulations may not be the most recent version. Nevada may have more current or accurate information. We make no warranties or guarantees about the accuracy, completeness, or adequacy of the information contained on this site or the information linked to on the state site. Please check official sources.
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