Fernco couplings on pressure pipe

Discussion in 'Plumbing Forum, Professional & DIY Advice' started by ncsu99, Nov 30, 2008.

  1. ncsu99

    ncsu99 New Member

    Messages:
    2
    I had to have a washing machine water supply box replaced and the plumber used Fernco couplers to connect supply stubs from the box to the hot and cold water copper supply pipes. Is this acceptable? He said it would be better than a traditional coupling. Is it ok to use Fernco couplings on pressure pipe applications like this? Should he have soldered the connections or used compression couplings?
  2. kingsotall

    kingsotall Plunger/TurdPuncher

    Call his boss and tell him what was done!!!!!!!!!

    Fernco's come that small¿ There are some water systems that use "hose clamps" but by all means this job should've either been sweated or PEXed with approved connections. Post us a pic so we can have something to add to the Pig Slop thread!
  3. hj

    hj Moderator & Master Plumber Staff Member

    Messages:
    26,869
    Location:
    Cave Creek, Arizona
    Fernco

    It depends on what you mean by "Fernco couplings". The traditional Fernco, which is what most people mean when they use the term, is a drain connection which would be totally inappropriate for a water line, assuming you could even find one that size. There are other connections for copper tubing and their desirability varies according to which and where they are used. A picture would help in the diagnosis.
  4. ncsu99

    ncsu99 New Member

    Messages:
    2
    I was way off. I opened the wall back up and found he used a Fernco on the drain and PEX on the supply lines. I thought I remember him saying it was all Fernco. Sorry for wasting you guys' time. Thanks for the advice though.
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