Simple Solutions

How to Unclog a Bathroom Sink Drain with a Plunger

By: Joe Truini
Using a plunger to unclog a bathroom sink drain.

Using a plunger to unclog a bathroom sink drain.

To unclog a bathroom sink drain using a plunger:

  1. Remove the pop up drain from the sink.
  2. Wet a rag and use it to seal up the sink overflow drain.
  3. Apply petroleum jelly to the bottom lip of the plunger.
  4. Run water in the sink.
  5. Place the plunger over the drain, and plunge up and down several time in quick succession.
  6. Run more water in the sink, and repeat as needed.

If using a plunger doesn’t clear the drain, remove the P-trap from under the sink and clean it out by hand.

Watch this video to find out more.

Further Information

Print   Video Transcript

Danny Lipford: Now something that can really be frustrating is a slow draining sink or a clogged sink.

Joe Truini: The first tool that most homeowners reach for is a plunger to clear sink clogs. But here are a few plumbing tricks that can help improve the efficiency of the plunger.

First, start by removing the pop up drain from the sink bottom. Then take a tissue or a rag, dampen it, and use it to plug up the overflow openings on the side of the sink. That helps direct the plunging pressure directly to the clog.

Next, take a little petroleum jelly, and smear it along the bottom lip of the plunger. That’ll help form an airtight seal against the sink bottom. Next, run a little water down the drain, then plunge vigorously three or four times. Run a little more water to clear out the clog.

Danny Lipford: Now, if this method isn’t successful, you may have to go under the sink and disconnect the P-trap, and use a plumber’s snake.



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