How to Unclog a Drain Without Harsh Chemicals

Most household clogs live in the first six feet of drain: hair in bathroom sinks and tubs, grease and food scraps in kitchens. They are mechanical problems, which is why mechanical solutions beat chemical ones.

Escalate in this order

1. Hot water flush — A kettle of (not boiling) hot water down a grease-clogged kitchen drain, in two or three stages. Boiling water can soften PVC joints — keep it under the boil.
2. Plunge properly — Block the overflow with a wet rag (sinks: the second basin), take a sink plunger — flat cup — and plunge with water in the basin, 15–20 firm strokes. It is the pressure pulse, not the suction.
3. Bake soda + vinegar — Half cup baking soda, then heated vinegar, wait 30 minutes, flush hot. Milder than it sounds online, but safe on every pipe and fixture finish.
4. Barricade: hand auger — A 25 ft hand drum auger feeds the drain until resistance, then cranks while pushing. Twist gently; aggressive cranking bends the cable into the trap.
5. The trap cleanout — Put a bucket under, hand-loosen both trap slip nuts (channel pliers only to start), empty the trap, and fish the clog. The trap is where most kitchen clogs physically are. Replace washers if they look flattened.

Prevention

• Kitchen: no grease down the drain, ever — it solidifies in the trap. Wipe pans with paper first.
• Bathroom: hair catchers cost two dollars and prevent ninety percent of tub clogs.
• Monthly: hot-water flush in kitchen, hair-catcher rinse in bathrooms.