Sweaty Toilet Tank

Related Articles

Cheap Bathroom Makeover

Renewing Bathroom Sinks

copyright G.G. Alonzy

Dear NH,
The toilet in our house has a lot of condensation on the bowl. It is actually leaving fairly large puddles of water on the floor. What's causing this and do you have any ideas on how to fix it?
JS from Ontario, Canada

Condensation on a toilet tank is caused by the water in the tank cooling the surface of the tank. This causes water vapor in the air to turn back to liquid water upon contact with the cool ceramic surface.

There are a few different ways to deal with this problem. The first is to increase the water temperature in the cold line. This can be done by installing a mixing valve between the hot water heater and the cold water line to the toilet. The valve will add a little hot water to bring the temperature up. I don't suggest doing this for your entire home water system, since hot water carries more mineral contaminants and is usually not recommended for drinking water.

There are some solutions right at the toilet tank. If you have a fairly new toilet, you may be able to purchase a replacement tank that is lined with plastic foam insulation. This will cut down on much of the condensation by keeping the temperature on the outside of the tank closer to room temperature. You can purchase a toilet tank liner kit at the hardware store that allows you to do the same thing to virtually any toilet. However, your installation must be scrupulous… if there are any leaks of water through the installed foam to the tank the effectiveness of the installation will be compromised!

The easiest, though least effective route, is to purchase a toilet tank drip catcher. These devices mount under the tank, catch the dripping water and direct it to a pan or jar on the floor. You might have to hunt for the right one of these, as they don't necessarily fit on all toilets.

Of course, there is the old standby put a towel on the floor under the toilet and change it regularly so it doesn't mildew! Putting a piece of plastic (such as a trash bag) under it will help keep the floor drier.

Have a small home repair question for THE NATURAL HANDYMAN? Just click here NaturalHandyman.com/aitikia. For more home repair information, visit NH's growing list of original home repair articles and quality links NaturalHandyman.com. If this information has been valuable to you, please consider making a small donation to support NH's free service to the home repair community! For more information, please visit our "Friends" page NaturalHandyman.com/Friends.

The Natural Handyman Site Directory

Take the Next Step

  • Could spending 5 minutes reading a newsletter twice a week save you time and money every day? Dollar Stretcher Tips readers think so. Subscribe and find out how many ideas stretch your day and your dollar! Subscribers get a copy of our ebook Little Luxuries: 130 Ways to Live Better...For Less for FREE.

Stay Connected with TDS

Little Luxuries

to the Dollar Stretcher newsletter and get a copy
of our ebook
Little Luxuries:
130 Ways to Live Better...For Less
for FREE!

Your Email:

View the TDS Privacy Policy.

Debt Book