NAC445A.6702. Pumping facilities: General requirements for piping system.

The piping system of a public water system, including any piping used for suction, discharge, priming, seal water and the control of flow and pressure, must:

     1. Be designed in such a manner as to minimize head loss.

     2. Not be subject to pollution or contamination.

     3. Be designed and constructed with watertight joints.

     4. Be protected against surge pressure, vacuum pressure and water hammer.

     5. Be equipped with means for the removal of entrapped air.

     6. Be designed in such a manner that each pump has an individual suction line or the suction lines are equipped with a header that ensures similar hydraulic and operating conditions.

     7. Be protected against freezing.

     8. Be properly bedded in such a manner as to prevent damage.

     9. Have taps for the sampling of water quality.

     10. Be restrained and supported in such a manner as to prevent movement.

     11. Be constructed with the appropriate pipes and valves to provide for its satisfactory operation, maintenance and repair at all times.

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