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.
insulated toilet tanks?
Apr 15, 2004
9 Replies
Not a problem. It is calked to keep it there. The small amount of water between the foam and the tank will not cause a problem.
It sounds like a larger problem than the insulation is going to take care of.
Suggest reducing the humidity in the bathroom or tempering the incoming water.
And installing one of the Fluidmaster "Leak Sentry" units.
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.
I don't either.
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