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How to Improve Double Sink Drainage

Your double sink is a lifesaver when it’s time to do the dishes or cook Christmas dinner. However, the two sink holes create an issue when the shared drain forms a nasty clog. Removing the clog correctly with an inexpensive manual tool is only part of the solution. It’s also crucial to prevent clogs before they occur by learning what can and cannot be put down your sink drains.

Things You'll Need

  • Rag
  • Plunger
  • Rubber gloves
  • Plastic bucket
  • Plumber's wrench
  • Sink strainers
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  1. Unclogging the Double Sink

    • 1

      Fill the sink with at least 1 to 2 inches of water. The water helps ensure a tight vacuum forms inside the drain, which helps dislodge the clog.

    • 2

      Dampen a rag with water and hold it inside either drain. This is crucial to ensure that a tight seal is formed inside the pipes. Place the head of a plunger on the other drain and begin to apply quick pressure and release it for at least 20 seconds.

    • 3

      Remove the plunger quickly in one swift motion. Continue to plunge the drain until any standing water inside the sink easily flows down.

    Cleaning the P Trap

    • 4

      Remove all of the items found under the sink. Slip on a pair of rubber gloves and place a plastic bucket under the P trap, which is the “J” or “U” shaped pipe found below the drain’s waste tee.

    • 5

      Loosen both slip nuts that hold the P trap in place with your hands. Use a plumber’s wrench to loosen the nuts first if they’re too tight to remove manually. Dirty, bacterial-ridden water will drain into the bucket, which should be disposed of after the cleaning is complete down a separate, functional drain.

    • 6

      Hold the P trap over a separate plastic bucket or a garbage can and use your gloved fingers to clean out any hair, dirt or other debris. Once the P trap is cleaned out, rinse it thoroughly with water.

    • 7

      Reinstall the P trap with your hands. Don’t overtighten the slip nuts with a wrench to ensure the plastic pipe doesn’t become damaged or stripped.

    Preventing Future Clogs

    • 8

      Scrape any leftover food on dishes and cookware into a garbage can before placing the items in the sink. This ensures the large food particles don’t clog the drain.

    • 9

      Avoid pouring hot cooking grease down the drain. The grease eventually solidifies, resulting in a nasty clog.

    • 10

      Install a metal or plastic strainer inside both drains. The strainers catch any large objects before they have a chance to clog your pipes.