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DIY
3 min read
Updated March 2026

How to Unclog a Drain

5 easy methods to fix clogged sinks and showers without harsh chemicals

Quick Answer

Try in order: 1) Boiling water 2) Baking soda + vinegar (wait 15 min, flush) 3) Plunger 4) Clean the P-trap under sink. Most clogs clear with these methods!

Step-by-Step Guide

1

Boiling Water (Try First)

Boil a kettle of water. Pour it directly down the drain in 2-3 stages, waiting a few seconds between pours. Works great for soap/grease buildup.

💡Don't use boiling water on PVC pipes or with a porcelain sink — use very hot tap water instead.
2

Baking Soda + Vinegar

Pour ½ cup baking soda down drain, then ½ cup white vinegar. Cover drain and wait 15-30 minutes. Flush with hot water.

💡The fizzing action helps break up organic buildup. Safe for all pipe types.
3

Plunger Method

Cover overflow hole with wet rag. Fill sink with a few inches of water. Place cup plunger over drain, push down firmly, and plunge vigorously 15-20 times.

💡Use a cup plunger (flat bottom) for sinks, not a flange plunger (that's for toilets).
4

Remove & Clean the P-Trap

Place bucket under sink. Unscrew the curved pipe (P-trap) by hand or with pliers. Empty debris, clean pipe, and reattach. Run water to check.

💡Most clogs are in the P-trap. This takes 5 minutes and solves 80% of sink clogs.

Frequently Asked Questions

What causes drain clogs?

Bathroom: Hair, soap scum, toothpaste. Kitchen: Grease, food particles, coffee grounds. All drains: Mineral buildup over time. Prevention: Use drain covers and avoid pouring grease down sinks.

Is it safe to use chemical drain cleaners?

Chemical cleaners work but can damage pipes over time, especially older or PVC pipes. They're also toxic. Try natural methods first. If you use chemicals, never mix different products.

When should I call a plumber?

Call a plumber if: Multiple drains are clogged (mainline issue), you smell sewage, water backs up into other fixtures, or DIY methods don't work after 2-3 attempts.

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