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How to Unclog a Bathroom Sink

Ask This Old House plumbing and heating expert Richard Trethewey reveals the best ways to unclog a backed-up bathroom sink

In this video, Ask This Old House plumbing and heating expert Richard Trethewey reveals the best ways to unclog a backed-up bathroom sink.

Steps:
1. First, check the pop-up assembly to make sure it's rising up enough at the drain line of the sink.
2. If that's not the problem, disassemble the pop-up assembly by loosening the nut on the main drainage pipe with an open-faced wrench and remove it. Be sure to use a bucket underneath to catch any excess water.
3. Any gunk may be connected to the pop-up that's released, or excess gunk in the drain can be scraped out by hand.
4. If there's a stoppage further down the drain, use the hair snare and fish it down the drain to attempt to loosen the obstruction.
5. The last resort may be a drain snake. Fish the apparatus down through the pipes and through the p-trap to attempt to loosen obstruction.

 
 
 

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