Originally Posted by garciajj612
Is there a way to test the check valves on backflows without the $800 pressure testing kit. In the area that I work In the city will test the backflows and I get a couple calls a week for check valves not holding pressure so I replace the necessary things. But I had one yesterday that I did not find why it was not passing so I went ahead and put it new gaskets, seats etc.... But I left unsure if that was going to fix the problem and I that didn't feel right. 90% of backflows I deal with are Wilkins 975
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You shouldn't really be repairing backflow preventers unless you are certified to do so. Owing the proper test equipment and knowing how to properly operate it and being certified to use it is 100% required. You mess something up and you could potentially make a lot of people sick and open yourself up to a huge liability.