Mystery Overflow Drain

Discussion in 'General Plumbing Help' started by EricJK, Nov 28, 2018.

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  1. Dec 22, 2018 #21

    EricJK

    EricJK

    EricJK

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    Thank you! We actually have pretty bad water pressure so this all makes sense. I'm pretty sure the valve has been working as designed. Mystery solved.
     
  2. Dec 22, 2018 #22

    wood4d

    wood4d

    wood4d

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    Or you could put a new check valve. for about 40 bucks if you do it yourself this is a backflow preventer to feed your boiler. It separates your house water from your heating system. If the atmospheric vent is leaking why do you think the rest works?
     
  3. Dec 22, 2018 #23

    Diehard

    Diehard

    Diehard

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    It's not a consistent leak. It sounds like it may be doing exactly what it was designed to do.
    We're not talking about a high hazard application here. In fact many homes don't even have these backflow preventers installed, unless it is a newer or updated system. The PRV's act as a backflow preventer to a certain extend.
     
  4. Jan 14, 2019 #24

    EricJK

    EricJK

    EricJK

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    Thanks again everyone. As stated - I think the valve may be working as designed, but our water pressure is so bad I think I need to get that fixed first. We may get a pressure tank or I may have an issue with our home water filter... still running that down. Once we get that sorted out, I'll look at the valve again. Thanks.
     

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