newbie can stop leak on new plastic outlet waste center

Discussion in 'Plumbing Forum, Professional & DIY Advice, Tips & ' started by nothingeverworks, Mar 26, 2007.

  1. nothingeverworks

    nothingeverworks New Member

    Messages:
    38
    Location:
    Florida
    i am putting in a new plastic 1.5" center outlet waste on a laundry sink.

    this is suppose to be simple plumbing stuff but of course it's not working for me.

    Both sides are leaking at the same joint -- the top most nut on the tail piece of the drain/strainer. I am wondering if it's because of the non-flanged washer included in the kit (the other washers are flanged but that what the instructions called for this connection).

    i used teflon tape.

    thanks
  2. Terry

    Terry Administrator Staff Member

    Messages:
    14,792
    Location:
    Bothell, Washington
    Well, for starters, remove the Teflon Tape.
    Those washer don't work with it.
  3. hj

    hj Moderator & Master Plumber Staff Member

    Messages:
    26,286
    Location:
    Cave Creek, Arizona
    washer

    I guess your saying that those washers are not flanged but the others are is what is confusing, because those are the only two washers that SHOULD be flanged. The others should be tapered without a flange.
  4. nothingeverworks

    nothingeverworks New Member

    Messages:
    38
    Location:
    Florida
    now i'm more confused

    Terry: thanks. i removed the tape and the leaks disappeared. Does that mean i shouldn't use teflon tape for plastic pipe connections?

    HJ: I thought flanged meant tapered. It looks like i got them in the right place anyway. thanks
    Last edited: Mar 26, 2007
  5. jadnashua

    jadnashua Retired Defense Industry Engineer xxx

    Messages:
    21,817
    Location:
    New England
    Teflon tape or pipe dope normally only goes on pipe threads - i.e., the tapered type. The compression nuts are standard threads - the washer or compression ring or flange is making the seal, not the threads. The tape can jam up the threads and prevent you from tightening the compression washer enough to prevent a leak. Pipe dope usually doesn't help, either, since the connection is not designed for it.
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