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jamesgangnc[_3_] jamesgangnc[_3_] is offline
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Default Puzzling Toilet Problem

On Jul 17, 12:29*pm, Joerg wrote:
Tony Sivori wrote:
Odd toilet leak problem here for anyone who wants to take a shot at a hard
to diagnose condition.


Symptom:
Toilet tank leaks into bowl, causing very frequent (every 15 minutes or
so) top ups of the tank. The leak is really bad; in reflective light,
water in bowl ripples noticeably after tank finishes filling.


The tank is not overfilling, water is not entering the bowl via the
overflow tube.


Obvious likely cause is the flapper. Replaced. Problem persists,
unchanged.


Next. Using gently duty scrunge, clean seal that flapper seats into.
Problem persists, unchanged.


Next. Try light coat of plumbers grease on flapper and seal. Problem
persists, unchanged. Try heavy coat of plumbers grease on flapper and
seal. Problem persists, unchanged.


Carefully inspect fill tube to be sure it is not cracked and leaking from
tank into bowl. No cracks or seepage found.


The last possible cause (leaving out cracked porcelain) is the rubber seal
between the tank and the bowl.


I worked a lot of overtime this week, and I haven't had time to make
another parts run and remove the tank.


As luck would have it, the manual shut off valve leaks when closed. This
means that when the water supply is shut off, the tank slowly (about one
hour) fills itself to the full normal level.


Here is where it gets weired. When the tank fills slowly through the
leaking water supply manual shut off, the tank does not leak into the
bowl. No leak at all.


WTF!? Wouldn't a leaky seal leak whether the tank fills very slowly or at
a normal pace? Why would that make a difference?


That points to the fill valve. What kind is it? I sometimes had that
happen that on 40 year old Kohlers. Slow leaks, drip .. drip ..
drippity-drip .. drip ... No leaking when shut-off almost closed but
leaks when fully open. It was the little hose that goes into the
overflow pipe.

--
Regards, Joerg

http://www.analogconsultants.com/- Hide quoted text -

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He said: The tank is not overfilling, water is not entering the bowl
via the
overflow tube.


I have had that happen because of the seal around the flapper seat to
the bottom of the tank. Since it's over the hole going into the bowl
the water ends up there.