How to Treat Clogged Toilets With Sulphuric Acid

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Take precautions when cleaning a clogged drain.

A clogged toilet can be a major inconvenience; and if you run a business, it could be a health code violation as well. Whether you own a home with one bathroom or a business that has dozens, you need to get those clogged drains fixed as soon as possible. Sulfuric acid can burn through even the stubbornest clogs, but it is important to use this powerful product safely.


Step 1

Visit a hardware store or plumbing supply center and look at the commercial drain cleaners on the shelves. The most effective commercial drain cleaners typically contain high concentrations of chemicals, such as sulfuric acid and lye.

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Step 2

Check the chemical makeup of each drain cleaner and choose the one that has the highest concentration of sulfuric acid. Using pure sulfuric acid could damage the plumbing in your home or office, but the chemical balance in commercial drain cleaners is designed for safety as well as effectiveness.


Step 3

Put on a pair of gloves and safety goggles before attempting to clear the blocked drain. The sulfuric acid and other chemicals in drain cleaner can be harmful if they get on your skin or in your eyes.

Step 4

Pour the drain cleaner into the toilet, following the directions printed on the bottle. Always read and follow the instructions and safety recommendations before attempting to unclog a drain.

Step 5

Wait the specified amount of time then try to flush the toilet. Repeat the application of drain cleaner if the clog is not completely eradicated.

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