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Stop Your Toilet From Sweating!

Is your toilet sweating? If so, you're not alone. In fact, it's a common problem that many homeowners face. Fortunately, there are steps you can take to stop your toilet from sweating and keep your bathroom looking its best. Keep reading to learn more!

The next time you go to use the restroom, take a moment to notice the moisture on your toilet tank. Chances are, it's not just regular old water; it's actually condensation. This happens when the air in your bathroom is warm and humid, and it comes into contact with the cold surface of the toilet tank. As the air cools, the moisture is pulled out of it and forms droplets on the tank. So, in a way, your toilet is acting as a natural dehumidifier! Of course, this isn't the most efficient way to remove moisture from the air, but it's definitely an interesting quirk of physics.

Changing the environment in your bathroom to discourage this process can reduce or eliminate a sweaty toilet. It can also help preserve the condition of your bathroom floor. So what can you do? Continue reading to find out!


Take these steps first to ensure that the air in your bathroom doesn't have a whole lot of water in it:

-Use an exhaust fan when you take a shower

-Take shorter, cooler showers to discourage the migration of water into the air

-Dry the shower walls after you have taken a shower

-Open the door to the bathroom when you finish your shower

-Use a portable dehumidifier to dry out the bathroom after a shower.

-Don't open the bathroom window if it's humid outside. Letting humid air in just makes matters worse.

-An air conditioner is a great dehumidifier. USE IT!


Condensation on your toilet tank is more than just an annoyance - it can lead to serious damage. Water that seeps through cracks in the porcelain can cause the metal components of your toilet to rust, and over time this can lead to a complete breakdown of the unit. Fortunately, there are a few simple steps you can take to prevent condensation from forming on your toilet tank. Insulating the tank will help to keep it at a consistent temperature, and this will prevent water from condensing on the surface. You can line the tank with an insulation kit, or you can cover the entire outside of the tank with a tank cover. If you can prevent the cooler tank from meeting up with the warmer air, condensation won't occur. If you're willing to spend a little extra, you can also purchase a new, insulated toilet tank. By taking these simple steps, you can protect your toilet from condensation - and from serious damage down the road.


You can install an anti-sweat valve that mixes a little warm water in with the cold when the tank refills. As long as the water temperature gets close to the air temperature in the room, NO SWEAT!


The less water you have in your tank, the less the tank will sweat. When it comes to toilets, low-flow models are a great way to save water. Not only do they use less water per flush, but they also generate less condensation. This is because the tank is less full, so there is less surface area for water to evaporate from. As a result, your bathroom floor will stay drier, and you won't have to worry about the tank sweating. Low-flow toilets are a great option for anyone who wants to save water and reduce condensation.


If you have noticed that your toilet is regularly taking on a lot of fresh, cold water, it is likely that the flapper valve at the bottom of the tank is leaking. The flapper valve is responsible for sealing the tank and preventing water from leaking out. However, over time, the valve can become worn or damaged, causing it to leak. If you stop the leak, the water in the tank can reach room temperature. While this may seem like a small problem, it can actually waste a lot of water and increase your water bill. Therefore, it is important to fix the leak as soon as possible.


This is the one tip that will do absolutely nothing to prevent your toilet tank from sweating. By placing a drip tray under your toilet tank, you can prevent the condensation from ruining your floor. You'll need to empty the tray regularly, but it's a small price to pay for protecting your bathroom from costly water damage.

If you would like more information about installing a low-flow toilet, a tankless toilet, or an insulated toilet tank, Brother Plumber can help! Give us a call at 469.868.4487

Sweating toilets are a common problem, but thankfully there are many ways to stop them. We’ve outlined six methods that should help you keep your toilet from sweating and ruining your floor. Have you tried any of these techniques? Do you have any tips to share with our readers? Leave a comment below and let us know!

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