When you're looking for a plumber, it's easy to think that all they do is unclog Blocked Drains Bayswater . But there are many other things that they can do to help your home and make it more comfortable. One of those things is using acid to unclog drains. What Kind of Acid Do Plumbers Use to Unclog Drains? Sulfuric acid is a strong acid that can dissolve many kinds of materials. It's commonly used to unclog drains, but it can also be used to clean out your pipes and prevent mold growth. Hydrochloric acid is another popular drain cleaner, but it's not as powerful as sulfuric acid. It works by dissolving minerals and metals in the pipe walls so they can't cause blockage again after you've cleared them out with some other type of chemical solution (like baking soda). Nitric acid will dissolve any clog that might be lingering in your pipes if you're not careful when using this kind of chemical drain stick; however, if there are already signs of corrosion o...