pex to copper fixture stub outs

Discussion in 'Plumbing Forum, Professional & DIY Advice, Tips & ' started by remodelbob, Jan 22, 2008.

  1. remodelbob

    remodelbob New Member

    Messages:
    59
    Location:
    Washington
    what is the best method to stub out a pex supply line?

    i was planning on using some of these pex to copper ells

    [​IMG]

    but I was wondering what the best way to secure them is? should i run some blocking behind them and strap to it and then put one of those copper plates with all the holes in front of it?

    i have also seen some of those ells with a nailing plate on them, is that a better solution?

    Terry, you seem to always have the perfect picture for these things. Do you have an example of a pretty PEX stubout?

    Thanks.
    Rob
  2. Rancher

    Rancher Guest

    That picture brings up a question... do you need any water hammer arrestors when using PEX?

    Rancher
  3. Herk

    Herk Plumber

    Messages:
    547
    Location:
    S.E. Idaho
    Probably the ideal way is to use a copper stub bracket and solder the stubouts to it.

    [​IMG]
  4. Herk

    Herk Plumber

    Messages:
    547
    Location:
    S.E. Idaho
    No - the plastic pipe is noise-limiting and absorbs the pressure variations.
  5. remodelbob

    remodelbob New Member

    Messages:
    59
    Location:
    Washington
    Should I also strap the ell to some blocking or will the bracket be enough?

    Thanks
  6. jadnashua

    jadnashua Retired Defense Industry Engineer xxx

    Messages:
    21,804
    Location:
    New England
    You may have missed the suggested step...solder the el to the bracket. That should be plenty to hold it in place.
  7. Terry

    Terry Administrator Staff Member

    Messages:
    14,763
    Location:
    Bothell, Washington
    The PEX is quiet and absorbs shock.
    My inspectors still like to see arrestors on washers, dishwashers and icemakers if they system is closed.

    Closed would be if there is a PRV on the line, or a check valve, which the city sometimes puts at the water meter.
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