The problem may be poor ventilation.
Black mold bathroom sink drain.
The first step to removing mold from under a sink is to identify the cause.
Bring 1 2 gallon of water to a boil and pour it down the clogged drain.
How to clean black sludge in bathroom sink drains step 1.
Remove black mold on bathroom wall dissolve some detergent in hot water.
You may not be able to see mold in sink drains or you may be able to catch a glimpse of black slime in sink drains by using a flashlight.
Make sure that the wall is completely dry before you move on to the next.
Even if you can t see it you can recognize mold by detecting a musty odor and the result could be respiratory problems and allergic reactions.
Pour a half cup of baking soda down the drain pour the boiled water down the drain give the formula 10 minutes the baking soda and the hot water will work together to unclog the drain.
Wipe the wall with a clean rag.
Take the stopper outside and clean it thoroughly putting the nasty mess in the trash.
Cleaning your drains with a natural home remedy using baking soda.
Next dry all wet or damp items in the area properly.
Mold will grow on any damp item including grooming items.
Replace the stopper and lock it back into place.
Clean the sink stopper from which the black gunk is coming.
After you get the solution use it to wash the bathroom wall which has been infected by black mold.
The extreme temperature of the hot.
Boil a pot of hot water 2 cups should do it.