Kohler Cimarron leaks from tank connection

Discussion in 'Toilet Forum discussions' started by Harriet H, Feb 7, 2015.

  1. Harriet H

    Harriet H New Member

    Joined:
    Feb 7, 2015
    Location:
    Florida
    We just installed a new Kohler Cimarron and it has a slow leak where the tank connects to the base. We took it apart 3 times and reconnected to make sure it's seated correctly. We called Kohler and they sent us a replacement kit for the tank connection. It still leaks! Please tell me what we could be missing before we rip it out and install a not-Kohler toilet!
     
  2. Wallijonn

    Wallijonn Member

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    Jun 7, 2013
    Occupation:
    computer technician
    Location:
    Arizona
    Last edited by a moderator: Feb 7, 2015
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  4. Terry

    Terry Administrator Staff Member

    Joined:
    Aug 17, 2004
    Occupation:
    Plumber
    Location:
    Bothell, Washington
    Normally it's just a matter of making sure everything is clean.
    No putty, no caulking.
    I sometimes check smoothness and use some emory cloth on the china if I feel rough spots.

    If you have a flexible supply to the tank, make sure you have no tape on the threads. Those will come with seals at both ends.
    New toilet, new flex connector.
     
  5. Harriet H

    Harriet H New Member

    Joined:
    Feb 7, 2015
    Location:
    Florida
    Thanks. We gave up and installed a Toto. Got our money back from Kohler. It appeared that the porcelain hole was defective and even if we could get it to stop leaking, it would always be a concern and something to keep checking. We're very happy with the Toto!
     
  6. Jim Gallanis

    Jim Gallanis New Member

    Joined:
    Jun 15, 2017
    Location:
    Chicago, IL, 60618
    I recently purchased and installed a Kohler Cimarron with the Drylock system. Once I got it all installed and added water to the tank, the water flowed out of the tank as though there were no gaskets. Seems the Flush Valve inside the tank is loose and the leak is from the between the valve and the procelain. I tried to remove the hex nut that holds the assembly in place but it won't budge - I'm thinking it may have been put on skewed and is now stripped. Kohler is sending me parts but since I cannot remove the nut (without maybe cutting it) I'm not sure if that will help or not. Is the flush valve supposed to be flush and tight against the porcelain? should the drylock plate be loose like it is? Any help would be appreciated.
    Thanks,
    Jim
     
  7. Terry

    Terry Administrator Staff Member

    Joined:
    Aug 17, 2004
    Occupation:
    Plumber
    Location:
    Bothell, Washington
    [​IMG]

    It should be snug. It might be a cross thread that you're dealing with. If they're sending new parts, you may be able to saw off the nut below and put the new parts together.
     
    Last edited: Jun 17, 2017
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