Backflow Testing

Backflow Testing

As a homeowner or business owner, you may have gotten a notice to test your backflow preventer. Many utility providers require annual testing of your backflow preventer device. But as you’re reading the notice, you’re becoming more and more unsure about what it is and what you need to do to get it done. Luckily, we’re here to answer the questions you might be asking yourself. 


This is a standard backflow device. (It is usually located under a green box or fake rock.)








A backflow preventer is a check valve unit installed on your pipes that allows water to only flow in one direction. Backflow preventers ensure that contaminated water does not reverse flow and enter in to the clean water lines. It can occur at any cross-connection between clean and dirty water lines. The dirty water may contain hazardous materials like human waste, pesticides, or chemicals, so you can see that a defective device can poses a very serious health concern. 
If you are in need of a backflow test for your utility company, we have you covered. We can test in the entire Mid South region and we have 5 licensed testers on staff.


Q &A


Who can test backflow devices?

Testing must be accomplished by a certified tester approved by the State of Tennessee, Division of Water Supply. We have 5 certified testers on staff ready to help you.


When are backflow tests due?

Annual tests for irrigation backflow devices are due upon the spring start-up, March 1st through June 28th. (Please ignore the due dates printed on the postcard from the city, all tests are due by June 28th of each year). It is necessary for all backflow assemblies to be tested annually.


What happens if a backflow test fails? 

If a backflow test fails, it means that the backflow device is not working properly and needs to be repaired or replaced. The repair or replacement should be done only by a certified backflow technician. Once the backflow is repaired or replaced, the certified technician will retest the deivce to send passing results into the city.


What should I expect during a backflow test? 

During a backflow test, the technician will inspect the backflow device and make sure it is connected properly, measure the flow rate and pressure of the water, and test the device for any leaks or cross-connections.


What are the most common problems with backflow preventers?

The most common issues are corrosion, leaks, clogs, and improper installation or maintenance.

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