Dean Hoffman wrote:

On 11/21/20 4:47 PM, badgolferman wrote:
wrote:

On 11/21/20 5:03 PM, badgolferman wrote:
badgolferman wrote:

One of our toilets has a slight leak into the bowl. The
bathroom is attached to the bedroom so during the night I
hear the tank fill itself back up very quickly. I have
swapped flappers with the other toilet and even bought two
new flappers. The first flapper was a Korky but my plumber
friend said it was for other model toilets and I needed a
Universal type Korky for the Universal - Rundle toilet in
question. The toilet still leaks despite the new flapper.
Do I need to replace the flush valve now? If so what do you
suggest? Any gotchas to be wary of?


I received a suggestion to shut off the water and let all the
water out except for what remains, then put food coloring in
the tank. That trick confirmed water was leaking past the seal
to tank of the flush valve when the colored water showed up in
the toilet. I bought a new Fluidmaster Universal flush valve
and installed that. It comes with its own flapper.

The problem remains. It still leaks exactly the same as
before. It looks like it's leaking through/below the front of
the the flush valve seal. I also noticed bubbles clinging to
the front of the valve. I have taken some pictures which you
can view below. I didn't see any cracks in the tank or
anything else. Any suggestions welcome.

https://ibb.co/Kxf0VTZ
https://ibb.co/cX2sxw5
https://ibb.co/TMBtspj
https://ibb.co/KwPQtmh
https://ibb.co/Kj0tZHQ
https://ibb.co/QPvFX7v


Did you also unbolt the tank from the bowl and replace the
separate tank to bowl gasket ??

Like these:
https://www.plumbingsupply.com/toile...l-gaskets.html


I took the tank off the bowl and checked the tank to bowl gasket,
bolts and washers. They were all fine and supple. There is no
leak out of the tank onto the floor, only into the bowl. How would
the tank to bowl gasket cause a leak into the bowl? The water has
to get past the flush valve to tank seal.

Doesn't that lead you back to the overflow tube? A crack in it
maybe?



The flush valve assembly and its seal has been replaced. The overflow
tube is part of that. Remember that I have let all the water out of
the tank except for what's left below the lip of the flush valve. The
overflow tube isn't even part of the equation at this point.