Keep it Handy “ASSE International strongly recommends that all ASSE 5110 certified backflow prevention assembly testers keep a copy of the Field Test Procedures Using Three-Valve and Five-Valve Test ...

It’s the law. If you have a sprinkler system or a pool, backflow testing is a plumbing service that checks your backflow preventer device.

A backflow assembly installed on your system is necessary to help prevent contaminates from entering your public water supply through what is known as backflow.

If Backflow Prevention Devices don't work properly, they can contaminate water. The town of Marana is asking homeowners to check theirs.

The purpose of this testing is to ensure that the backflow preventer—a crucial device designed to protect the public water supply from contamination or pollution due to backflow—is functioning ...

But many backflow preventers are installed in utility vaults, which increases the risk of cross-connection and the dangers for the people who test backflow preventers. Why?