No customer shall cause or allow the installation or maintenance of a booster pump in a public water system unless a device is installed to control operation of the booster-pump when pressure to pump suction drops as follows.
(A) Wherever a fire suppression system has a booster pump installed only for fire suppression, it shall have an audible or visual alarm to provide warning when flow occurs and a control valve shall be installed on the booster pump discharge to automatically throttle the flow as necessary to maintain a minimum of ten pounds per square inch, gauge, pump suction pressure.
(B) (1) For all booster pumps other than those described in division (A) above, a control device shall be installed to either prevent operation of the booster pump, or else to automatically throttle flow to or from the booster pump as necessary to maintain a minimum of 20 pounds per square inch, gauge, pump suction pressure.
(2) The supplier of water may require that the control device be calibrated to maintain a higher than 20 pounds per square inch, gauge, pump suction pressure, where necessary to provide a minimum pressure of 20 pounds per square inch, gauge, throughout the pressure zone of the public water system distribution system to which the customer is connected.
(Ord. 2018-13, passed 8-13-2018)