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Old 08-28-2016, 04:01 PM   #1
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Join Date: May 2011
Posts: 118
Default Water heater check valve

There is a little bit a back flow from the water heater into the supply side. I, momentarily, get hot water out of the cold water faucet. Is there any reason that I should not install a check valve on the supply side of the water heater?

1989 FLD120 with 2000 NRC conversion
andyg is offline   Reply With Quote
Old 08-29-2016, 01:53 AM   #2
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Join Date: Jul 2014
Location: Emerald Hills
Posts: 6

A friend of mine just went through this on his home water heater. More than likely it is a faulty washer on the faucet. That turned out to be his problem - after he had tried all the more complicated things he could think of. To the best of my knowledge, a check valve on the supply side is not a problem, but it might not solve the problem either.
Thank you, Dan
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