Installing a sink tailpiece

Discussion in 'Plumbing Forum, Professional & DIY Advice' started by Titan7, Jul 6, 2010.

  1. Titan7

    Titan7 New Member

    Joined:
    Feb 14, 2005
    I installed the sink about a year ago, looked under the sink and the tail piece looks like it has a tiny leak where it threads into the drain (the part that attaches to the bottom of the sink). So I took it off and the p-trap, cleaned everything off.

    I applied some oatey pipe compount #31226, grey, and then wrapped 3 times with telfon tape and reinstalled. Is this correct?

    Also why does the tape always bunch up, I put it on the treads clockwise. I assume there is nothing I put on the PVC P-trap treads on the other side of the p-trap.

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  2. johnjh2o1

    johnjh2o1 Plumbing Contractor for 49 years

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    Retired
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    South*East
    If your going to use both pipe dope and T-tape apply the tape first then the dope. Are you sure it's coming from the tail piece? It may be coming from the connection above it.

    John
     
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  4. hj

    hj Moderator & Master Plumber Staff Member

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    Cave Creek, Arizona
    The tape bunches up because there is not enough room inside that connection for three layers of it.
     
  5. Redwood

    Redwood Master Plumber

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    Service Plumber
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    Connecticut
    I'll agree many times the leak is coming from the mack washer on the drain above.
    Make sure you check that carefully and if it is post back for a solution.
     
  6. Titan7

    Titan7 New Member

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    Feb 14, 2005
    It's not the Mack washer. There was some mineral deposits around the tailpiece connection, and it was a bit loose.

    So should I take this apart again and redo it?
     
  7. jimbo

    jimbo Plumber

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    Aug 31, 2004
    Location:
    San Diego
    Those are very fine threads , and 3 wraps of tape could be too much. If it is together and not dripping,. let it be!!!!!!!
     
  8. Titan7

    Titan7 New Member

    Joined:
    Feb 14, 2005
    Well, it does not appear to be dripping. I don't like the look of the extra white tape, looks sort or homeowener DIYer ; )

    If I decide to redo it, would you use paste or tape? If tape should I fold it in half and wrap once?

    The only pain is I have to disconnect the entire p-trap to get the tailpiece out ; (
     
  9. Titan7

    Titan7 New Member

    Joined:
    Feb 14, 2005
    Well, it does not appear to be dripping. I don't like the look of the extra white tape, looks sort or homeowener DIYer ; )

    If I decide to redo it, would you use paste or tape? If tape should I fold it in half and wrap once?

    The only pain is I have to disconnect the entire p-trap to get the tailpiece out ; (
     
  10. Terry

    Terry Administrator Staff Member

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    Aug 17, 2004
    Occupation:
    Plumber
    Location:
    Bothell, Washington
    Just don't look. If it isn't leaking, quit beating yourself up. Now..........where's the beer.

    I like dope on those threads. It hides better.
     
    Last edited: Jul 7, 2010
  11. hj

    hj Moderator & Master Plumber Staff Member

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    Occupation:
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    Cave Creek, Arizona
    If the tailpiece is tight, and you just don't like the look of the tape, unpeel the excess which is showing. It is not doing anything anyway.
     
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