NAC445A.67005. Pumping facilities: Priming.  


Latest version.
  •      1. Priming must be conducted in such a manner that:

         (a) The water used for priming is of no less a sanitary quality than that of the water being pumped.

         (b) There is a means to prevent backflow.

         (c) In installations where a centrifugal pump is used and air binding or the accumulation of air is a problem, there is a means to remove the air from the eye of the impeller.

         (d) Where vent lines discharge to a drain, the vent lines are designed with an air gap.

         2. This section does not prohibit the use of self-priming pumps.

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