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Solved: Leaky toilet tank

Discussion in 'Do It Yourself (Not Computer-Related)' started by pcguy9441, Apr 5, 2010.

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  1. pcguy9441

    pcguy9441 Thread Starter

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    Does anyone know how to fix a leaky toilet tank? I can't tell if it's leaking from the main seal or where the bolts go thru the tank to clamp it down. I replaced the original 20 yr old washers with new rubber washers where the bolts pass through the tank bottom and installed a new main seal. But it's still leaking. ??? what else is there to do? I know tightening the bolts is critical, not too tight so as to distort the washer but not too loose. They are pretty snug.

    Any tricks of the trade I'm missing? Never seen sealant used here.
     
  2. peck1234

    peck1234

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  3. Deke40

    Deke40

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    You didn't mention whether you checked where the main water line hooks up to the flush valve.

    Also how about the gasket where the valve goes through the tank.
     
  4. pcguy9441

    pcguy9441 Thread Starter

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    It's not leaking there. It's leaking from the bottom of the tank. Either the large main seal or the small washers around the two bolts that hold the tank down or both. After braking the float ball yesterday and installing a new float valve today then tightening up the bolts another 1/2 turn I'll check it again tomorrow (I don't live in the house). The instructions with the float valve said "do not apply sealant to the rubber seal" so that settles that question. We have a home warranty with a $60 deductable and as much as I hate to do it, I may just let a plumber wrestle with it and come back 3 times till it stops leaking. I have a feeling it's a matter of how tight is tight enough. Not enough and it leaks, too much and it distorts the gasket/washer and it leaks.
     
  5. wacor

    wacor Banned

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    Wipe down the bottom of the toilet bowl to make sure it is dry and then put some paper towel on the floor to see where it is dripping. Should not be that hard to figure out. As I recall you have where the water line connects to the float and then the tanks connecting to the toilet. You start tightening things too much and you risk cracking the porcelain. Might be too early in the year but another issue can be sweating causing what looks like a leak.
     
  6. pcguy9441

    pcguy9441 Thread Starter

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    Thanks for the inputs. It seems to be ok now after a little more tightening yesterday.
     
  7. JohnWill

    JohnWill Retired Moderator

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    It's really easy to remove the tank and replace all the seals, which will surely solve the issue if it leaks again... :)
     
  8. pcguy9441

    pcguy9441 Thread Starter

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    Yeah, the problem is I did all that and it still leaked, not as much, but some. I'm generally pretty good at fixing stuff from cars to computers, but for whatever reason toilet's drive me nuts. It's still got a very minor seeping kind of leak and I'll probably take it apart again and install a new gasket kit with larger diameter tank bolts. The first time I put some silicon high vacuum grease on the main seal, maybe that was the problem. The grease usually works well as insurance on smaller fittings.

    I'm on to more fun stuff now trying to bring my computer back from the dead after a failed Win7 install attempt over XP.

    Thanks to everyone for the suggestions!
     
  9. aka Brett

    aka Brett Banned

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    Exactly..that way you can leave a metal wash out from inside the tank.
    If you find yourself still having to use a metal washer inside the tank..be sure it isnt against the tank
     
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