Corian bathroom sink - overflow adapter leak

Discussion in 'Plumbing Forum, Professional & DIY Advice' started by Terrence Evans, Dec 22, 2019.

  1. Terrence Evans

    Terrence Evans New Member

    Dec 22, 2019
    Atlanta, GA
    Hi all -
    I'm a first timer to this forum and looking for a little advice. Also, a DIY'er and bit of a novice.

    I have a 20 year old Corian counter/sink in the bathroom that has developed a leak in the adapter that goes between the bottom of the drain and the pop up assembly. This adapter also has the connection for the overflow drain and tube. You can see the crack in the first photo.

    Will anything be able to fix that leak?...currently trying a few coats of Flex Seal spray but that isn't looking like it will be effective. Would part Epoxy work instead?

    If i can't stop the leak....any advice on where to buy a new adapter? And is that the right name for the part if i start calling around? I want to make sure people know what the heck i am talking about.

    Another idea I had and would welcome your thoughts....could I get rid of the adapter altogether? I would have to attach the pop up assembly directly to the sink and then replace the drain pipe (second picture) with a drain pipe that has a connection for a drain tube (i would then re-route the drain tube from the overflow drain down to this new connection).

    Am i on the right track? Is that possible?

    Thanks to any and all thoughts people have.

    IMG_2343.jpg IMG_2363.jpg
  2. James Henry

    James Henry In the Trades

    Jul 23, 2019
    Billings, Montana.
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    Tuttles Revenge likes this.
  4. Reach4

    Reach4 Well-Known Member

    Sep 25, 2013
    Where is the leak? On the top or underside of that big black seal, coming down threads, or what?
  5. Terrence Evans

    Terrence Evans New Member

    Dec 22, 2019
    Atlanta, GA
    It is coming from above that seal.

    To ensure the seal is tight, yesterday I installed a brand new pop up drain assembly. The part that i did not replace is the adapter (white piece) that goes between the seal and the sink itself.

    That is when i noticed that that piece has a crack in the side.
  6. mx5reddwarf

    mx5reddwarf New Member

    Feb 22, 2020
  7. Michael Senger

    Michael Senger New Member

    Mar 26, 2020
    San Diego, CA
    Terrence - did you find a replacement part?

    I have the exact same issue and need to replace it.
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