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Plumbing

How to Unblock a Sink

Quick Answer

Use a plunger, then baking soda and vinegar, or remove and clean the U-bend trap.

How to troubleshoot How to Unblock a Sink

A blocked sink is a common kitchen problem. This guide covers simple methods to clear the blockage.

Step-by-Step Fix

  1. Remove any standing water from the sink.
  2. Place a plunger over the drain and pump vigorously up and down.
  3. Pour half a cup of baking soda followed by half a cup of white vinegar down the drain.
  4. Cover the drain and wait for 15 minutes, then flush with boiling water.
  5. If still blocked, place a bucket under the U-bend, unscrew it, and clean out the debris.
  6. Reattach the U-bend securely and run water to test.

Common Error Codes

CodeMeaningResolution
Water drains slowlyPartial blockage or grease buildupUse a drain snake or chemical cleaner formulated for grease.

Frequently Asked Questions

Is it safe to use chemical drain cleaners?

Use them sparingly as they can damage pipes. Opt for natural methods first.