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 ...

While different types of backflow prevention devices exist, Kristin Pattinson, Drinking Water Section Chief with the MO Department of Natural Resources, says the devices all do the same thing.

Backflow prevention assembly testing is required by law. Clark Public Utilities recommends testing in the spring, just before the irrigation season begins. It’s quick and doesn’t cost much.

New York state Department of Health certified backflow testers make sure backflow prevention devices meet all state-mandated guidelines. The Plainview Water District is available to help residents ...

Backflow-prevention assembly testing is required by law. The Clark Public Utilities Water Utility urges its customers to have their backflow-prevention devices tested in the spring, just before ...

A backflow prevention device is used to stop the reverse flow of water from a potentially polluted or contaminated source into the region's drinking water supply.