B and K Industries 109-503RP Anti-Sweat Toilet Tank Valve

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A toilet can sweat due to condensation, which occurs when the water temperature inside the tank is colder than the ambient air in the bathroom. Before getting into solutions, let’s talk about what causes condensation to form on the outside of toilet tanks in the first place. Here’s how Merle Henkenius explains it in an article for ThisOldHouse.com:

anti-sweat valve work? - Liquid Image How does a toilet anti-sweat valve work? - Liquid Image

Remove any removable parts, such as the flush unit from the cistern. These can easily be refitted after your mat is in place.When the weather turns hot and humid, there’s a lot of moisture in the air. At the same time the water entering the toilet tank is comparatively cold—about 50° to 60°F. When the warm, moist air hits the cool porcelain toilet surfaces, the air condenses, turns to water and soon drips onto the floor. In conclusion, condensation on a toilet cistern can be a frustrating and unsightly problem that is caused by high humidity in the bathroom. By following the steps outlined in this article, you can stop condensation on your toilet cistern and improve the overall comfort and appearance of your bathroom.

Condensation On a Toilet Tank | Why Do Toilets Sweat? Fixing Condensation On a Toilet Tank | Why Do Toilets Sweat?

Determine the best location for the mixing valve and shut off the water to the hot and cold water supply lines. Cut the line and insert the pipe into the outlet port of the valve. Mark where you need to cut the other end of the cold water line and determine the placement of the Tee for the hot water line. Cut the hot water line and install the valve according to the manufacturer’s instructions, typically using compression fittings or soldering. Step 5: Connect The Hot Water Line

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With a sweating toilet, the toilet tank is wet all around it, but a toilet that is leaking will be letting water out between the tank and the bowl, and therefore the tank will remain dry. It is, however, possible that a toilet tank will be sweating and leaking at the same time. Poor Insulation: A bathroom that is not properly insulated can also contribute to high humidity levels and condensation on toilet cisterns. Take the tank lid away, then hold the toilet handle down to flush as much water down the toilet as possible. For any leftover water, vacuum it using a wet/dry vacuum or a cup to throw it down the shower drain. Use a dry towel to dry the tank’s interior completely. Step 3: Take the Measurements Instead of investing a lot of time in retrofitting an old toilet, you’re probably better off installing a new low-flow toilet that uses less water at each flush. That’ll keep cold-water tank refills to a minimum and reduce the sweats. Soak up the water at the bottom of the toilet with the sponge, and now scrub the bottom of the tank to remove all the stains.