San Diego Plumbers › Plumbing Info › Plumbing Questions › Why Does a Toilet Sweat

Question: Why does my Toilet Sweat?

Answer:

If toilet tank sweating is your problem then here are 4 options we recommend:

1. You could install insulating foam products to isolate the water from the tank sides. Home Depot carries it for a reasonable price. I think they are about $7-$10. Read the directions for complete directions, but you should completely empty the water from the tank, then use a hairdryer to ensure that the sides are absolutely dry. Cut the foam and apply adhesive. Let it sit for 6 - 8 (time approximates) hours and it will be ready to be refilled and useable. This usually works but is not a guarantee.

2. The second option is to install a mixer valve which uses both hot and cold water to "mix" the water and adjust the temperature as you need to or until the condensation or sweating stops. Depending on how far away the hot water heater is, it may take quite awhile for the hot water to get there so in some cases, just running a hot water line is sufficient. Works well but you will most likely need to call us for assistance.

3. Lastly and more expensive is to replace the guts of the toilet and replace them with a "pressure assisted" unit, like the Flushmate - 1 gallon per flush. This option is a water saver and works very well - no tank sweating at all.

4. Total toilet replacement - Pressure Assisted Toilet - should you need to replace your old toilet. Might cost $260 on up but well worth it. This toilet has a pressure tank in it inside the water tank. Guaranteed to do the job and you get a great new toilet that wokrs well.