Kohler Cimmaron losing water in tank. Help!!

Discussion in 'Toilet Forum discussions' started by tlong_66, Nov 14, 2009.

  1. tlong_66

    tlong_66 New Member

    Messages:
    31
    Ok i have a problem and really need help. I have a Kohler Cimmaron that i have had for a year or so now. Up until a couple of weeks ago it worked fine with no problems. Now somehow water is leaving the tank and the fill valve keeps coming on to refill the tank. I shut the water supply off and you can definately see the water level drop. There is no water leakingfrom the water supply/ fill valve connection. There is no water leaking from the tank/bowl. There is no sign of leaking at the base of the toilet either. I ordered and installed a new Kohler flush valve withou any change. It can't possibly be the fill valve can it (like the float)? I'm no expert on toilets but have fixed and installed a few in my time but never faced this situation. I mean there are only so many ways for the water to leave the tank and with no signs of leakage anywhere i am stumped. Can anyone offer any advice?
  2. Gary Swart

    Gary Swart In the Trades

    Messages:
    7,396
    Location:
    Yakima WA
    It's the flapper. It is either worn out or has something preventing it from sealing. Try cleaning the flapper itself and the seat where it drops.
  3. tlong_66

    tlong_66 New Member

    Messages:
    31
    Gary i did that first before buying the replacement valve. I read the instructions for troubleshooting the problem. I cleaned around the seal, adjusted chain to make sure it was properly seated after flushing and tried adjusting the fill valve all with no luck. It also not a traditional "flapper" but a cannister style. The flush valve on there right now is brand new and i examined it carefully before installing.
  4. Runs with bison

    Runs with bison Member

    Messages:
    897
    Location:
    Midwest
    Drop a bit of dye into the top of the tank and watch where it goes. It should head toward your leak.
  5. tlong_66

    tlong_66 New Member

    Messages:
    31
    Ok so this is what i have done in my investigation of the problem. I flushed the toilet as normal and by that i mean with the tube sticking down the over flow. In about five minutes the water level drops enough for the fill valve to operate and refill the tank. I did this a few times to verify what it was doing. I then put dye in the tank and flushed. The result was the dye showing up in the bowl. Please remember that this is the same result as the old flush valve. So i decided to try something else. I took the fill tube out of the over flow ad just let it hang in the tank after filling. When i did this and waited for awhile i saw no leak even after hours there was no drop in the water level in the tank. So what do i do now?
  6. Inspektor Ludwig

    Inspektor Ludwig Journeyman/Inspector

    Messages:
    167
    Location:
    In the good ol' UPC
    You're supposed to let the dye sit in the tank without flushing. Then if you see dye in the toilet (without flushing) you'll know it's the flapper.
  7. Replace the seal at the bottom of that tower. That'll fix the problem.
  8. Terry

    Terry Administrator Staff Member

    Messages:
    15,416
    Location:
    Bothell, Washington
    The tube down the overflow will siphon the tank down to that level.

    Keep the fill tube above the overflow tube.
  9. tlong_66

    tlong_66 New Member

    Messages:
    31
    I did let it sit without flushing.
  10. tlong_66

    tlong_66 New Member

    Messages:
    31
    I replaced everythin from tank to bowl gasket, to locknut, seals and whole cannister assembly. It all came as a kit. No old parts were reused.
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