Every year a certified backflow assembly tester is contracted at a set rate to test every participant’s backflow device. To participate, call the utility’s backflow line mentioned above.

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 ...

The Missouri Department of Natural Resources requires homeowners to have their irrigation systems tested for backflow each year.

Wichita residents who have an irrigation system connected to the City of Wichita’s water system must have their backflow device tested by Sept. 12 to avoid disconnection.

The city of Montrose says it will “improve enforcement of the testing requirement for backflow assemblies to meet or exceed the Colorado Department of Health and Environment’s compliance ratio ...