How to kill slime mold clogging your sink

Written by emily meyer
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Slime, mould and other bacteria can easily build up in your sink and cause minor clogs. Many expensive products are on the market that claim to solve this problem. The problem can be quickly resolved, however, using items you probably already have in your cupboards. Bleach, vinegar and baking soda are common household products that kill germs and clean your pipes. These products can also be used on a monthly basis to prevent future mould and bacteria growth in your sink and pipes.

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Things you need

  • ½ cup liquid bleach
  • ½ cup baking soda
  • 1 cup distilled white vinegar
  • 4 cups boiling water

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  1. 1

    Pour ½ cup bleach down the drain, and let it stand for one hour.

  2. 2

    Pour 2 cups boiling water down the drain.

  3. 3

    Run hot water for one minute.

  4. 4

    Put ¼ cup baking soda down the drain.

  5. 5

    Pour 1 cup vinegar down the drain, and let it stand for 15 minutes.

  6. 6

    Pour 2 cups of boiling water down the drain.

  7. 7

    Run hot water for one minute.

Tips and warnings

  • Prevent the reoccurrence of mouldy growth by using the baking soda and vinegar mixture in your sink once a month. This method works to clean and deodorise pipes, preventing slimy build-up.
  • Keep drains unobstructed. Damp pipes with no ventilation are more likely to breed bacteria.
  • Use a drain protector to prevent food from entering the drain. Food particles often get stuck on pipes, promoting the growth of mould which may lead to a clogged sink.
  • Pour hot or boiling water down the sink to flush pipes daily. This method is an effective way to keep your sink bacteria free.
  • If the sink is completely clogged or there is standing water in your sink, do not use liquid bleach. You will need to clear the clog with a plunger or plumbing snake first. If the clog persists, consult your local plumber.
  • Use caution when using liquid bleach. Pour the bleach directly into the sink to avoid splashing.
  • If bleach makes contact with your skin, wash the area immediately with soap and warm water.
  • When vinegar is added to baking soda, it produces a natural chemical reaction to break down minor clogs. The result is bubbling foam. Do not be alarmed when you see this. It means the products are working to clean your pipes.
  • If the clog is not cleared, there may be a more serious plumbing problem. Consult your local plumber to identify and resolve the problem.

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