fourempties wrote:
I had the same problem- very slow leak. I tried EVERYTHING, then
replaced the toilet and the new one was fine. It must have been a very
small crack in the old toilet. I would just go get a new one if I were
you.

Eric in North TX wrote:
I had one that the internal glazing was damaged, and it wicked water. I
just covered the area with a thin layer of silicone seal, that was over
5 years ago, and it hasn't leaked a drop. I find that will even seal
cracks, seems like the ideal material to seal with silicone seal, as it
makes a long term repair.

Well, we fixed the leak. We bought a HUGE gasket and put rubber washers
on each side of the tank. Fixed. BUT....now we see a spot on the
under side of the tank that is wicking/sweating water. When wiped
away, I counted to 3 or 4 and then started seeing new beads of water
appear in a perfect line. Soooo....there is a hairline crack - or the
glazing was damaged (as Eric has reported). It is so slow - it would
probably drop a bead of water every 12 hours - it's that slow. We'll
try doing what Eric did - drain and dry the tank and seal it up and see
what happens. Anyone know how much a new tank would be? It's an older
toilet (20 years old), so one that size/color (beige) could be hard to
find and expensive. Any thoughts?

Thanks!
Paula