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Guides/How to Unclog a Drain

How to Unclog a Drain

7 methods that work — from boiling water to calling a plumber

Takes 5–30 min $0–$25 in supplies No special skills needed

Quick Answer

To unclog a drain: start with boiling water, then try baking soda + vinegar (30 min soak), then plunge with 2 inches of standing water, then use a zip-it tool to pull out hair. If those fail, clean the P-trap under the sink. Still clogged? The blockage is in the main line — call a plumber.

1Boiling Water (Easiest — Try This First)

Boiling water melts grease and soap buildup instantly. Best for kitchen sinks. Works less well for hair clogs.

  1. 1. Boil a full kettle of water.
  2. 2. Pour slowly in 3 stages, 5 seconds apart.
  3. 3. Run hot tap water for 1 minute after.
Warning: Do not use boiling water on PVC pipes — use the hottest tap water instead.

2Remove Hair and Debris by Hand

The most common cause of slow bathroom drains is a hair clog just inside the drain — easily removed without tools.

  1. 1. Remove the drain stopper (usually lifts out or unscrews).
  2. 2. Look inside with a flashlight.
  3. 3. Use needle-nose pliers or your fingers (with gloves) to pull out hair and soap scum.
  4. 4. Flush with hot water to test.

3Baking Soda + Vinegar

Effective for grease and soap buildup. Takes 30 minutes but requires no tools.

  1. 1. Pour ½ cup of baking soda down the drain.
  2. 2. Follow with ½ cup of white vinegar.
  3. 3. Cover the drain with a rag or stopper.
  4. 4. Wait 30 minutes, then flush with hot water.

4Plunger

A plunger creates pressure and suction to break up and move clogs. Use a cup plunger for sinks and tubs (not a toilet plunger).

  1. 1. Fill the sink or tub with 2–3 inches of water.
  2. 2. Place the plunger directly over the drain — the rubber must seal completely.
  3. 3. Push down firmly and pull up sharply, 10–15 times without breaking the seal.
  4. 4. On the final stroke, break the seal sharply upward.
  5. 5. Repeat 3–4 times if needed.

5Drain Snake / Zip-It Tool (~$5)

A zip-it tool (a plastic strip with barbs) costs about $5 and is the most effective tool for hair clogs. Available at any hardware store.

  1. 1. Insert the zip-it into the drain opening.
  2. 2. Rotate while pushing down until you feel resistance.
  3. 3. Slowly pull back — hair and debris will come with it.
  4. 4. Clean the tool and repeat until no more debris comes out.
  5. 5. Flush with hot water.

6Clean the P-Trap (Under the Sink)

The curved pipe under your sink (the P-trap) catches debris. Cleaning it takes 10 minutes and requires no special tools.

  1. 1. Place a bucket under the P-trap.
  2. 2. Unscrew the two slip nuts by hand (or with channel-lock pliers).
  3. 3. Remove the P-trap and dump any water into the bucket.
  4. 4. Clean out any debris with a brush or your fingers.
  5. 5. Reinstall and run water to check for leaks.

When to Stop and Call a Plumber

  • Multiple drains are slow or backed up at the same time
  • Water backs up into other fixtures (toilet bubbles when you run the sink)
  • You can smell sewer gas coming from the drain
  • The clog returns within 1–2 weeks of clearing
  • All 6 DIY methods have failed

These signs indicate a main sewer line clog, which requires a motorized drain snake or hydro-jetting. A plumber typically charges $100–$250 for standard drain cleaning, $250–$800 for hydro-jetting.

Frequently Asked Questions

What is the fastest way to unclog a drain?

The fastest DIY method depends on the clog type. For hair: a zip-it tool (30 seconds). For grease: boiling water. For general blockages: a plunger with 2 inches of standing water. If you need it done immediately and DIY isn't working, call a plumber — most can clear a standard clog within 30–60 minutes of arrival.

Does baking soda and vinegar actually work?

Somewhat. Baking soda and vinegar works for mild grease and soap buildup but is not effective for hair clogs or solid blockages. The fizzing reaction is mostly cosmetic — it doesn't generate enough force to dislodge a real clog. For hair clogs, a zip-it tool is far more effective.

Why does my drain keep clogging?

Recurring clogs usually mean the blockage was never fully cleared, or hair/grease is accumulating faster than it drains. Install a drain strainer to catch hair. For kitchen sinks, avoid pouring grease or coffee grounds down the drain. If clogs return within 2 weeks despite clearing, call a plumber — you may have a partial main line blockage.

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Michigan Homeowners Also Ask

How do I unclog a drain without a plumber in Michigan?

For minor clogs, pour boiling water down the drain, follow with a mixture of baking soda and white vinegar, wait 15 minutes, then flush with hot water. A manual drain snake (available at any Michigan hardware store for $20–$40) handles most hair and debris blockages. Never use chemical drain cleaners on PVC pipe — they cause long-term damage.