Sweating Toilet (Answer)

Hey Paula,

Sometimes a leaking flapper valve can cause this buy not holding water tightly in the bowl. If the flapper valve leaks you will hear the toilet run and shut off, even when it has not been used. This will cause cold water to keep coming in and never giving it a chance to warm up, this can cause excessive condensation.
To check if the flapper valve is leaking;
 Turn off the water supply to the toilet, before you go to bed. The shut-off valve is on the right side of the toilet near the floor.
 Take the top off of the tank and mark the water level with a marker.
 The next morning check the water level.
 If the water level has not dropped, the flapper is good.
 If the water level has dropped, the flapper is bad, and needs to be replaced.
 Turn the supply back on.

If the flapper is leaking, then replacing it should cure your problem. If the flapper is not leaking, you may want to get a toilet tank insulation kit. You can get this kit at your local hardware store for fewer than fifteen dollars. This insulates the tank and cuts down on the accumulation of condensation.
If all else fails, there is one other method. You can consult a plumber on installing a hot water mixer valve. This valve adds hot water to the toilet’s water supply. With warm water and a warm toilet tank, you will not have condensation.

Thanks for your question.

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