I just installed an "insulated "toilet and noticed that the top of the
Styrofoam was all silicone caulked except for a 1" section near the flush
mechanism. This makes no sense to me. As the tank fills, water rises between
the Styrofoam and tank just like it wasn't there, this new cold water after
every flush is going to cool the tank to the point condensation will form on
the outside. Would it not make more sense if the entire top perimeter was
sealed so at least the trapped air between the would prevent cold water from
rising in this space. Even more effective would be to have it sealed with
caulk at the bottom as well.
Very good point. Habbi, check for a leak. If there is a leak, then
cold water is always coming in and you get the result you are seeing. The
first place to check is the flapper valve. You can just dump some food
coloring into the tank and wait an hour and see if the bowl is colored. If
so you need to service the flapper valve.
Well like I said I just put a new one in and maybe the old one was leaking
but nobody ever complained about hearing the old one "dribbling" (the sound
it makes when the flapper is leaking) Anyway I caulked the spot I had
mentioned, I can't see how it would do any harm.
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