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Valve

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Don and Kathy DuCharme:
Help!  Developed a water leak under vanity in toilet room of 07 Contessa.  The leak is a plastic backflow preventer connected to what appears to be a pressure/temp valve.  There is a blue water line going in and a red comming out.  These lines are not attached to the lavatory faucet or the Hydro hot unit.  Anyone know what these lines are connected to?  The valve appears to be a relief valve of some sort, but probably is not funtional.  Any help will be appreciated.
Thanks

Joel Ashley:
This may be your culprit, Don -

http://www.cashacme.com/_images/pdf_downloads/products/backflow/v101/V101_Spec.pdf

Mine is model V101.  The flow is from the blue tube to the red one.  I wish I could help beyond identifying the device, as I don't know the precise engineering involved, but likely someone on the Forum does.  My guess is it is between the city water fill and the water tank, but I'm not sure why you'd have an ongoing leak there unless the city water was on tank fill mode constantly, since otherwise the valve wouldn't be subject to water pressure.  The tank fill valve is in the off position at the manifold isn't it?  But if not you'd have noticed the overflow discharge.  :-/

Joel

Tim Bentley Co-Admin:
Also available at Amazon

http://www.amazon.com/gp/product/B000MNLNF6/ref=as_li_qf_sp_asin_il_tl?ie=UTF8&tag=beavambaclub-20&linkCode=as2&camp=1789&creative=9325&creativeASIN=B000MNLNF6

Joel Weiss:
That appears to be a backflow prevention device (an air gap) which probably is designed to make sure that water in the fresh tank can't siphon back down the input hose.

Brad Burgess:
This back flow preventer pictured was on my Sanicon tank flush circuit.  If that's what it is, I don't know why it would leak constantly.

Brad Burgess

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