NAC444.168. Skimmers.

     1. Each pool must be provided with at least one skimmer for each 400 square feet (37.2 square meters), or fraction thereof, of the pool area.

     2. There must be no fewer than two skimmers in every pool.

     3. Any skimmer used in a pool must be designated by the NSF International as complying with all applicable requirements of Standard 50, “Circulation System Components and Related Materials for Swimming Pools, Spas/Hot Tubs,” of the NSF International or in the absence of applicable requirements, be approved by the health authority. A copy of this standard may be obtained from the NSF International, P.O. Box 130140, Ann Arbor, Michigan 48113, at a cost of $45.

     4. The total capacity of all skimmers used must be a minimum of two-thirds of the required filter flow. Piping for skimmers used must be designed for a capacity of at least 80 percent of the required filter flow of the recirculation system, and in no case less than 30 gallons per minute (113.6 liters per minute).

     5. All inlets must be spaced at least 5 feet (1.5 meters) away from any skimmer.

     6. One skimmer must be placed at a point in the pool opposite the direction of prevailing summer winds.

     7. All skimmers used must be equipped with an approved equalizer valve and an equalizer line with an inside diameter of not less than 2 inches (5.08 centimeters), installed not less than 12 inches (30.48 centimeters) below the normal operating level of the water. The inlet to the equalizer line or lines must be designed to prevent the creation of a holding force whenever the body or limb of a bather comes into contact with the inlet. The inlet must be protected by a grill or shroud that will prevent a bather or any limb of a bather from entering the inlet.

     [Bd. of Health, Public Bathing Places Reg. Art. 26 §§ 26.10-26.10.3, eff. 5-21-74]—(NAC A 7-23-82; 11-1-88; 1-16-96)