Comments on: Is there a way to repair a crack in a porcelin toilet tank?

By: cacianss

cacianss — Tue, 09 Feb 2010 10:34:59 +0000

Cracks get bigger they don't get smaller buy themselves. Buy a new one.
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By: OldManFromScene24

OldManFromScene24 — Tue, 09 Feb 2010 10:19:59 +0000

From your description it sounds like you cracked it. To test for leaking you'll want to dye the water with either some blue food coloring or an actual dye tablet. I don't suggest trying to repair a cracked tank. Body weight and temperature variances may cause it to grow or expand over time. And you don't want to be away from home with a leaking tank. Your best bet is to replace it.
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By: Jeff

Jeff — Tue, 09 Feb 2010 09:45:59 +0000

If it is cracked you can't repair it, but all is not lost. You can seal it temporarily by draining the tank and drying it. After 24 hours of drying time put a bead of RTV along the inside of the tank where the crack is. Take your finger and push the RTV into the crack as best as you can, but still leave a build up on top of it as well. Use gloves if you are sensitive to RTV. Sooner or later you will need to buy a new tank, but this will work in the short term!!
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By: Retired

Retired — Tue, 09 Feb 2010 09:00:59 +0000

Wipe the bottom of the tank dry with a cloth, feel around with your finger, you'll find the leak. There may be some products you could plug it with, however being right on a tightening bolt could present problems. I would just replace the entire toilet.
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