NAC445A.66995. Pumping facilities: Pumps.

A supplier of water shall ensure that, with regard to the pumps used by the public water system:

     1. Each pump is suitable for its intended purpose, has an adequate capacity for its intended purpose and is installed in accordance with the directions of the manufacturer.

     2. When the pressure in a distribution system is dependent exclusively on a pumping station, at least two pumping units are used unless the required quantity and pressure of water can be supplied by other facilities in the public water system during any period that can reasonably be expected necessary to complete the repair of one pump.

     3. Power to drive a pump at maximum horsepower is provided by a suitably sized prime mover.

     4. Spare parts and tools are readily accessible.

     5. Control equipment is provided with proper heaters or fuses for protection from overloads.

     6. If a lineshaft turbine pump has oil-lubricated bearings, the grade and designation of the oil is approved by the Division of Public and Behavioral Health.

     7. If a pump is used to pressurize a small system that may experience periods of zero flow, the pump has a small relief bypass to prevent the overheating of water in the pump.

     (Added to NAC by Bd. of Health, eff. 2-20-97)