606.5.5 Low-pressure cutoff required.
PC § 606.5.5
A low-pressure cutoff shall be installed on all house pumps filling a water tank, and booster pumps in a water pressure booster system to prevent creation of a vacuum or negative pressure on the suction side of the pump when a positive pressure of 10 psi (68.94 kPa) or less occurs on the suction side of the pump.













