What Is Backflow?
Backflow is the reversal of water flow due to abnormal pressure often leading to contaminated drinking water. For example: your irrigation system backflowing herbicides into your indoor plumbing, or used water from a commercial building backflowing to the street supply. These scenarios jeopardize the sanitary quality of water for the user and the community.
How Backflow Devices Work?
A backflow preventer can protect the water supply in a variety of different ways, depending on the device. All devices use one or more of the following methods of prevention: air gaps, air inlet valves, check valves, or pressure differential relief valves. All of these methods either dump the backflow to atmosphere or seal the line when the direction of flow reverses.
When Do They Need To Be Tested?
Now that we have established how important backflow preventers are, when do they need to be tested? Under the regulations of every county, and water authority in Southern California, you are required to test your device annually. This ensures your device is preventing backflow. Also, when a device is installed, repaired or relocated, it needs to be tested prior to being placed into service. One Flow Orange County Backflow Testing Service can provide any necessary testing, repairs, or installation.