How to Unclog a Drain

A clogged drain is one of the most common household plumbing issues—and one of the most frustrating. Before you reach for harsh chemical drain cleaners, try these safer, more effective methods.

Why Drains Get Clogged

Understanding what causes clogs can help you prevent them in the future. Most drain clogs are caused by a buildup of:

• Hair and soap scum in bathroom sinks and showers
• Food particles and grease in kitchen sinks
• Toilet paper, wipes, and foreign objects in toilets
• Mineral deposits from hard water over time

DIY Methods That Actually Work

1. Start with Boiling Water

For minor clogs, especially in kitchen sinks with grease buildup, boiling water can work wonders. Boil a full kettle of water and pour it slowly down the drain in 2-3 stages, allowing the hot water to work for several seconds between each pour.

2. The Baking Soda and Vinegar Method

This classic combination creates a fizzing reaction that can break down minor clogs:

1. Remove any standing water from the sink or tub
2. Pour ½ cup of baking soda down the drain
3. Follow with ½ cup of white vinegar
4. Cover the drain with a plug or wet cloth
5. Wait 30 minutes, then flush with hot water

This method is safe for all types of pipes and is a great monthly maintenance routine to prevent future clogs.

3. Use a Plunger (The Right Way)

A plunger isn't just for toilets! Use a cup plunger for sinks and tubs and a flange plunger for toilets. Here's the proper technique:

• Fill the sink or tub with enough water to cover the plunger cup
• Place the plunger over the drain, creating a seal
• Use quick, forceful plunges—push down and pull up rapidly
• Repeat 15-20 times, then check if water drains

Pro tip: If you have an overflow drain, cover it with a wet cloth to improve suction and make plunging more effective.

4. Try a Drain Snake or Auger

For stubborn clogs, a drain snake (also called a plumber's auger) is highly effective. These flexible tools can reach 15-25 feet into your pipes to break up or retrieve clogs:

1. Insert the snake into the drain opening
2. Turn the handle clockwise as you push it forward
3. When you hit resistance, continue turning to break through the clog
4. Pull the snake back out slowly, removing any debris
5. Flush with hot water

5. Remove and Clean the P-Trap

The curved pipe beneath your sink (called the P-trap) often catches debris. If you're comfortable with basic plumbing, you can remove and clean it:

1. Place a bucket under the P-trap to catch water
2. Use a wrench to loosen the slip nuts on both ends
3. Remove the trap and clear any debris
4. Inspect the trap for cracks or damage
5. Reassemble and test for leaks

What NOT to Do

When to Call a Professional

While many clogs can be handled with DIY methods, some situations require professional expertise:

Prevention Tips

The best way to deal with clogged drains is to prevent them in the first place:

• Use drain screens or strainers to catch hair and food particles
• Never pour grease or oil down kitchen drains
• Run hot water after each use to help clear residue
• Do a monthly baking soda and vinegar treatment
• Only flush toilet paper—never wipes, even if labeled "flushable"
• Schedule annual professional drain cleaning for preventive maintenance

Trust the Experts

At H2O Plumbing, we've been helping Southwest Washington families with all their plumbing needs for over Founded 2020 years. If you've tried these DIY methods and still have a stubborn clog, our experienced team is ready to help with professional drain cleaning services.

We use advanced video inspection and hydro-jetting technology to diagnose and clear even the toughest clogs—without damaging your pipes. Plus, we'll give you honest advice on preventing future issues.