Treating Black Mold in a Toilet

Treating Black Mold in a Toilet

A toilet can be a haven for mold, mildew, and fungi, especially ones that are not used regularly. The combination of water, a lack of natural light, and other factors can allow mold to sprout up and spread. Due to these circumstances, black mold is a real threat. This month, we will take a look at how you can address any black mold you find in your toilet and how you can prevent any issues in the future.

Addressing the Mold 

There are many ways to tackle black mold in your toilet bowl and tank. We will provide you with two options that do not use bleach. While it can be used to treat black mold, some like to avoid using it due to corrosion and safety concerns. 

1st Method: Vinegar and Baking Soda

Start by combining a cup of vinegar and baking soda into a spray bottle before spraying the mixture on all visible mold spores. You should also spray around the rim, seat, and toilet lid. The combination needs to sit and wear away at the mold for at least an hour. 

Once the spores are ready to be scrubbed away, grab a toilet brush or sponge. Clean up all mold spores and then flush the toilet once or twice. Finish the cleaning process by wiping the seat and lid with a rag or cloth dipped in a vinegar and water mixture. To be extra thorough, add some vinegar and baking soda to the toilet tank. This will allow the mixture to go through the tank over the course of several flushes, providing a deeper clean.

2nd Method: Hydrogen Peroxide

The second method is very similar to the first, with a few changes. This time, add hydrogen peroxide and water to a spray bottle with a 3:1 ratio. Spray the mixture following the same process laid out in our first method. Next, wait at least a half hour as the solution eats away at the mold before scrubbing the spores away with a sponge or toilet brush. Then, just flush the toilet a couple of times to end the treatment process.  


One key element to preventing future mold issues is eliminating any stains in your toilet bowl. Mold may feed off of these stains and create some serious issues. Some other preventative measures include flushing toilets you don’t use all that often at least three times a week, flushing after each use, and addressing leaks in your bathroom as soon as possible. You should also make sure your bathroom is properly ventilated. Run your bathroom fan, open windows, or even use a floor fan to keep the air circulating. 

Contacting Mold Medics

If you spot mold in your home, be sure to reach out to our professional mold removal contractors. Countless homeowners throughout the Pittsburgh region trust our pet-safe, child-safe, and people-safe remediation methods. We know how serious a mold outbreak can be, and we will work diligently to eliminate it at the source. Contact us today for a FREE quote. Just visit our website or call (888) 828-6653.

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