(1)A pump and motor shall be provided for recirculation of pool water:
(a)All pumps shall be provided with a strainer on the suction side of the pump. The strainer shall be at least equal in size to the pump suction line;
(b)Strainers installed below water level shall be provided with a valve on each side to facilitate cleaning.
(2)Performance of pumps shall meet the conditions of flow required for filtering and backwashing the filters against the total dynamic head developed by the complete system. Pumps shall be capable of providing design flow rates at no less than 60 feet (1.83 kg/cm2) of total dynamic head.
(3)Pumps shall be capable of pumping at a rate sufficient to turn over the total pool volume within 30 minutes.
(4)Pumps on public spa pools built or remodeled after the effective date of these rules shall comply with National Sanitation Foundation Standard Number 50 on centrifugal pumps.
(5)Pumps shall be sized so as to pump the flow required in section (3) of this rule under filter soil conditions such as to create pressures or vacuums at which manufacturers recommend filter cleaning.
Rule 333-062-0110 — Pumps,