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Why does my kitchen sink drain slowly and gurgle?

A slow-draining kitchen sink with gurgling sounds often points to a partial clog in the P-trap or branch drain. Here's how to clear it.

Category:Plumbing

Difficulty:Easy

Time:20 min

Success:50%

Updated:Jun 9, 2026

quick_referenceQuick Answer

For Why does my kitchen sink drain slowly and gurgle?, start with "Remove the P-trap": Place a bucket under the P-trap. Loosen the slip nuts by hand or with pliers, and remove the trap. Dump debris into the bucket. Stop DIY if you see standing water in both basins after plunging. This is listed as a easy recovery and usually takes about 20 min.

verifiedGuide Snapshot

Repair areaPlumbing

Estimated time20 min

DifficultyEasy

Stop conditions3

Last updated Jun 9, 2026. Review the stop conditions before continuing.

account_treeRecovery State

DeviceKitchen Sink

Current stateSlow Drain

Specific stateGurgling

Failed stepPartial Clog

Likely failure typeBlocked Path

DIY boundaryDIY recovery first

paymentsCost decision

help1. Understand the Problem

A slow drain combined with gurgling noises usually indicates a partial blockage that creates an airlock. Food scraps, grease, and soap scum are common culprits. If left untreated, it can lead to a complete clog and standing water.

build_circle2. Try This First

Best First Step

Remove the P-trap

Place a bucket under the P-trap. Loosen the slip nuts by hand or with pliers, and remove the trap. Dump debris into the bucket.

visibility3. Visual Guidance

See what's happening and how to try the first recovery step.

Check the trap for clogsInspect the removed P-trap for solid blockages. Use a wire or bottle brush to clear out grease and debris.

Clean the sink strainerRemove the sink strainer and clean out any accumulated food scraps from the basket and flange.

Flush with hot waterPour a kettle of boiling water down the drain to melt remaining grease and soap scum.

Reassemble and testReattach the P-trap, tighten slip nuts, and run hot water for 30 seconds to confirm smooth drainage.

autorenew4. If That Doesn't Work

Try the next recovery options.

Use a plungerSeal the overflow hole with a wet cloth, then plunge vigorously to dislodge the clog.

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Call a plumberIf the clog is deep in the main line, professional snaking may be required.

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Frequently Asked Questions

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warning5. Stop DIY If

Don't continue if any of these apply.

reportYou see standing water in both basins after plunging

reportThe drain line is cast iron and you suspect a break

reportYou smell sewage gas coming from the sink

Still stuck?Get personalized help with AI Recovery.

Same Device Recovery States

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Sink draining slowlyA slow-draining kitchen sink with gurgling sounds usually means a partial clog in the P-trap or garbage disposal. Here's how to clear it.

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Strainer leakWater dripping from the basket strainer under your kitchen sink means a dried-out gasket or loose locknut. Tighten or replace the seal before it rots the cabinet floor.

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Sink drain smellsA kitchen sink drain that stinks usually has rotting food sludge in the P-trap or a dried-out garbage disposal. Clean it in 10 minutes with stuff under the sink.

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This page provides general DIY guidance.
If you're unsure, it's always best to consult a professional.