The pressure vacuum breakers consists of a check device (valve) and an air inlet, which is usually a chamber vented to the atmosphere.

Devices designed to prevent backflow from happening and thus protect water supplies from becoming contaminated.

This article is designed to present information about annual backflow testing, what it is and what are your responsibilities concerning it.  For more information you can call us at (817) 996-2000. In accordance with the Clean Water Act of 1971, and subsequent water safety acts, all cities in the United States are required to have