Backflow prevention devices such as double check valves, vacuum breakers and reduced pressure backflow devices are commonly used in our area to protect both domestic wells and municipal water systems from back syphon and back flow cross contamination. These devices protect cross contamination from syphoning from ponds or swimming pools filled by a hose or lawn contaminants such as fecal matter from the lawn back flowing from a loss of pressure in the pressure tank on a domestic well, or loss of pressure on a municipal system. These devices by state and federal law are required to be tested annually.
A backflow assembly test takes an average of 15-25 minutes per device. During the test, the main water supply does have to be turned off, but water service will be restored as soon as the testing is complete.
This type of testing is important because your sprinkler system can be backflowing without your even knowing it which means that you may be unknowingly adding contaminants to the city water supply. You should take the time to get a certified backflow tester in order to be sure your results are accurate. You can schedule an appointment with a technician that is able to help conduct your backflow testing. This technician will be able to see what is going on with your sprinkler system.
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