Have you ever opened a water tap and got something other than clean, safe water? 

There have been many documented cases of drinking water being contaminated or polluted by both commercial and residential sources around the world. Backflow is a water condition that you want to avoid at any cost. Simply put, backflow occurs any time the flow in your water system reverses. For example, occasionally a car will strike a fire hydrant on a street. Water will gush out of the hydrant at full water pressure, causing a huge drop in water pressure in all buildings on the block. With this drop of pressure the direction of water flowing through pipes can actually reverse. Whenever flow reverses, the likelihood of drinking water contamination is possible. With this in mind, you want to avoid mixing drinking water with non-potable (not drinkable quality) water. This is what a backflow valve is designed to prevent.

Who can install a backflow valve? Only licensed plumbers can install and certify backflow assemblies. After the assembly is installed, a certified backflow tester or a licensed plumber must test its operation and it must be approved by a city inspector.

What maintenance is required? All backflow valves must be tested and certified when installed and at least once per year thereafter. Most valves pass inspection. But if the device fails, you have 30 days to have it repaired or replaced.

Since 1884 the John W. Danforth Company has been a leading mechanical contractor in the United States. In addition to providing certified backflow testing and installations, the John W. Danforth Company is a single source solution for all of your mechanical equipment needs. We will respond quickly and efficiently with the highest trained technicians and the latest technology.

Call John W. Danforth Company today!