forward flow test
forward flow test
(OP)
So who is doing them or who is requireing them??
If requireing them do you witness the flow???
any comments, problems??
http://inspector911.com/forward-flow-test/305
If requireing them do you witness the flow???
any comments, problems??
http://inspector911.com/forward-flow-test/305





RE: forward flow test
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RE: forward flow test
Easy. They now worry about rainwater collection and greywater systems because that's the latest, perceived hazard to potable water supplies. It's all about the latest trend in backflow preventer world.