How do I unclog a kitchen sink?
Start with Simple Methods
Begin by removing the strainer and any visible debris. Then try a plunger: ensure there's enough water to cover the cup, and plunge vigorously up and down for 20-30 seconds. If that doesn't work, pour half a cup of baking soda down the drain, followed by half a cup of white vinegar. Cover the drain and let it sit for 15-30 minutes, then flush with hot water. This can break up grease and light clogs. For a disposal, make sure it's off and never put your hand inside.
- Plunge with a cup plunger (not a flange plunger for toilets)
- Use baking soda and vinegar followed by hot water
- Try a kettle of boiling water (if pipes are metal; avoid for PVC)
- Use a drain snake (auger) for deeper clogs
- Check the P-trap under the sink and clean it out
When to Use a Snake or Call a Pro
If the clog persists, use a hand-crank drain snake. Insert it into the drain and crank to break through or pull out the clog. For clogs beyond the P-trap or in the main line, you may need a plumber with a power auger. Chemical drain cleaners can work but are harsh; they can damage pipes and are dangerous if they splash back. Use them as a last resort and follow instructions carefully.
Prevention
Avoid pouring grease or oil down the sink; wipe pans with a paper towel first. Use a strainer to catch food bits. Run cold water while using the disposal and for 15 seconds after to flush debris. Periodically flush with hot water and baking soda to keep drains clear.
Common mistakes
- Using a toilet plunger instead of a cup plunger, which won't seal properly.
- Pouring chemical cleaners after a plunger—they can splash back and cause burns.
- Ignoring the P-trap, where clogs often form and are easy to clean.
