Installation of an approved backflow preventer is required at the service connection to any premise where there is an auxiliary supply or system – even if there is no connection or cross-connection. For example, anyone with an alternate source of water such as a well, spring, stream, etc., or anyone with an irrigation system, or two or more meters serving one parcel must have a backflow prevention device. Commercial and professional buildings with fire sprinklers, lab equipment, boilers, etc, are further examples of premises that require a backflow preventer.

Each Municipality in each State, has Rules and Regulations governing backflow preventer requirements. Most require the owner of any premises on which protective devices are installed to have certified annual inspections made of such devices for their water tightness and reliability. The device shall be serviced, overhauled, or replaced whenever found to be defective. Certified records of such inspections and/or repairs are required to be submitted to their respective Districts. You may engage any Backflow Prevention Tester who is USC and AWWA certified to perform the test.