can vent face upwards on a backflow preventer

Discussion in 'Plumbing Forum, Professional & DIY Advice' started by trafficscout, Oct 13, 2007.

  1. trafficscout

    trafficscout New Member

    Oct 13, 2007
    My boiler has a Watts Series 9D Backflow Preventer 3/4" installed and the vent is facing upwards.

    Do you think its a problem or should i try turning it so it points downward. It may not be easy to turn downward. Thanks.
  2. hj

    hj Moderator & Master Plumber Staff Member

    Aug 31, 2004
    Cave Creek, Arizona

    It shouldn't because then any discharged water stays in the body. There are steel springs in it which will deteriorate if immersed in water. This is the same reason the discharge from a T&P valve cannot run uphill.
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  4. patrick88

    patrick88 Plumber

    Sep 3, 2007
    Webster Ma.
    It should have union style ends on it so turning it should not be a big problem.
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