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Fix Ladder · Level 1: First Wins

Slow or Clogged Sink

Hair at the stopper causes most bathroom clogs. Work from the easiest fix down.

Level 110 to 45 min
Question

Is it just this sink?

Question

Which sink?

The Fix

Clean the stopper and pull the hair

Bathroom sinks usually slow down from hair and soap building up on the pop-up stopper and just below it. Difficulty: Level 1: First Wins. Plan on 10 to 45 min.

Safety: If you already poured a chemical drain cleaner, don't plunge or open the pipes. Flush with plenty of water first; the chemical can splash.

Already have everything? Jump to instructions ↓
Plastic Drain Snake (Hair Clog Tool)
Barbed strip pulls hair out of bathroom drains without chemicals.
Optional (1): nice to have, not required
Tongue-and-Groove PliersOptional
Grips slip nuts, trap fittings and anything round.

Affiliate links: As an Amazon Associate I earn from qualifying purchases. Buying through these links costs you nothing extra. Prices and availability are shown on the store's site, and you can buy these anywhere.

Safety first

If you already poured a chemical drain cleaner, don't plunge or open the pipes. Flush with plenty of water first; the chemical can splash.

1

Pull the pop-up stopper out. Some lift straight out, some twist, and others release when you loosen the pivot nut on the back of the drain pipe under the sink.

2

Clean the hair and gunk off the stopper.

3

Push a plastic drain snake down the drain and pull it back slowly. Repeat until it comes up clean.

4

Run hot water for a minute, then reinstall the stopper.

Did that fix it?
Still slow→
Question

Does this sink have a garbage disposal?

The Fix

Start with the disposal

In a sink with a disposal, the disposal is the most common cause of slow draining.

1

A jammed or clogged disposal often causes a slow kitchen sink. Use the Garbage Disposal guide first: it covers jams, the reset button and drain problems.

The Fix

Plunge the sink

Kitchen sinks clog with grease and food, often close enough to the drain for a plunger to push it through. Difficulty: Level 1: First Wins. Plan on 10 to 45 min.

Already have everything? Jump to instructions ↓
Cup Sink Plunger
Flat cup seals on a sink basin. Keep it separate from the toilet plunger.

Affiliate links: As an Amazon Associate I earn from qualifying purchases. Buying through these links costs you nothing extra. Prices and availability are shown on the store's site, and you can buy these anywhere.

1

For a double sink, seal the other drain with a wet rag or stopper so the pressure goes toward the clog.

2

Put an inch or two of water in the sink, seat the cup plunger over the drain, and plunge firmly 10 to 15 times.

3

Run hot water to check the flow.

Did that fix it?
Still slow→
The Fix

Clean out the trap

The U-shaped trap under the sink holds water to block sewer gas, and it also catches debris that builds into a clog. Difficulty: Level 1: First Wins. Plan on 10 to 45 min.

Already have everything? Jump to instructions ↓
5-Gallon Bucket
Catches water when you open a drain trap.
Tongue-and-Groove Pliers
Grips slip nuts, trap fittings and anything round.

Affiliate links: As an Amazon Associate I earn from qualifying purchases. Buying through these links costs you nothing extra. Prices and availability are shown on the store's site, and you can buy these anywhere.

1

Put a bucket under the U-shaped trap below the sink.

2

Loosen the two slip nuts by hand or with pliers and remove the trap.

3

Clean it out and check the pipe going into the wall.

4

Reinstall it hand-tight plus about a quarter turn, run water, and check for drips.

Did that fix it?
The Fix

Run a hand auger into the wall pipe

If the trap is clear, the clog is further down the pipe inside the wall, beyond a plunger's reach. Difficulty: Level 1: First Wins. Plan on 10 to 45 min.

Already have everything? Jump to instructions ↓
Hand Drain Auger
Reaches clogs past the trap, inside the wall pipe.
5-Gallon Bucket
Catches water when you open a drain trap.
Optional (1): nice to have, not required
Work GlovesOptional
Grip and protection for demo, yard and engine work.

Affiliate links: As an Amazon Associate I earn from qualifying purchases. Buying through these links costs you nothing extra. Prices and availability are shown on the store's site, and you can buy these anywhere.

1

With the trap off, feed the auger cable into the pipe going into the wall.

2

Crank as you push. When you hit resistance, keep turning to break through or grab the clog.

3

Pull the cable back slowly, reinstall the trap, and flush with hot water.

Did that fix it?
Still clogged→
Stop here

Stop: this sounds like the main line

When several drains are slow, or water comes up in a tub or floor drain when you use another fixture, the clog is usually in the main drain line, not one sink.

Use as little water as possible and call a plumber or drain-cleaning service. They have the long machine augers and cameras this needs.

Stop here

Time to call a plumber

If the clog is past the trap and a hand auger can't clear it, it's deeper in the line. A plumber can clear it without damaging your pipes.

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