A. Fire suppression systems containing booster pumps installed after the effective date of OAC 3745-95-07 shall include a minimum pressure-sustaining valve, which shall be set to close, should the supply pressure drop below 10 psi. Where a booster pump has been installed prior to the effective date of OAC 3745-95-07 on the Service Line to or within any Premises, such pump shall be equipped with a low pressure cut-off device designed to shut-off the booster pump when the pressure in the Service Line of the suction side of the pump drops to ten (10) pounds per square inch gauge or less.
B. It shall be the duty of the water Consumer to maintain the minimum pressure sustaining valve or low pressure cut-off device in proper working order and to certify to the Water Purveyor, at least one a year, that the device is operating properly.