What is a back flow valve? To understand what it is, we first must look at its purpose. In 1972, Congress passed what is generally known as the Clean Water Act; it was actually entitled the Federal Water Pollution Control Act.  Subsequent additions to that act were passed in 1977 and 1987. The main thrust

Backflow preventer valves are devices used to prevent backflow from happening on your property.  When there is a sudden change in water pressure within your pipes, either back-pressure or back-siphonage is the cause, and this can lead to contaminated water flowing back into the main water supply. Backflow preventer valves prevent this from happening.  The

What are backflow devices? We will attempt to answer that question in layman’s terms in this article.  If you have further questions, call us at (817) 996-2000. We are City Backflow Testing, and backflow is our livelihood. We start with the question: what is backflow? In layman’s terms, backflow is the reversal of water flow