How to seal up a leaky toilet tank?

Question

Hey folks... my toilet tank is leaking out of one of the boltholes. I believe that the reason for this is that when it was installed, they didn't use those rubbery washers that you're supposed to use. I added them, and it's still leaking (very slow leak).

Ideally, I'd like to get away with not replacing the tank, so I'm thinking that if I dry it off and use some kind of silicon or something around the hole, it should seal it up. Any suggestions as to what product I should use, or alternative ideas? Thanks folk.

"Fighting crime by building more jails is like fighting cancer by building more cemeteries." - Paul Kelly

Bob · Accepted Answer

If you cleaned everything up good, that's usually enough. If they didn't userubber washers the first time, maybe the tank is cracked.more cemeteries." - Paul Kelly

Rich · Answer

Same thing happenned to me years ago.   Dried up the tank and siliconed the bolts from inside.  Leak's gone...Rich====================================Garage Door Parts, LLC973-472-4818

buffalobill · Answer

toilet parts are so inexpensive but when your home in a one-holer the pressure for fast repair is up full blast. the pdf at this link gives the perfect proper sequence of the bolts and their rubber washers, so save it!

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parts and knowledge on repairing our twenty toilets is at:

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maradcliff · Answer

cemeteries." - Paul KellyYES.You will have to disassemble it again, be sure everything is 100%clean and dry. Apply 100% pure silicone to both sides of the rubberwashers, under the bolt heads, etc.  Reinstall adn you should be fine.I have done this.  It worksBe sure bolts are tight, but dont over tighten.  Silicone is slipperyand the rubbers will expand and slide right out from under the boltheads.

George E. Cawthon · Answer

more cemeteries." - Paul KellyThe key is to have the correct size rubber washers, put them where they go and use the correct size steel washers in the right place. Tighten firmly but not so much as to crack the tank.

Mikey · Answer

more cemeteries." - Paul KellyAny silicone sealant that says it's for bathroom, tub and tile should work.  Oryou can try "Amazing Goop"(that's it's actual name) for plumbing.

How to seal up a leaky toilet tank?

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