A back flow device is used to prevent dangerous backflow in the water pipes caused by a sudden drop in water pressure. When such a drop occurs, water can reverse direction within the pipes, sending pollutants and contaminants back into the potable water supply. To prevent this from happening, back flow devices like pressure valves

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

An explanation of how a backflow device works to protect your water supply from contamination.