How to Unclog a Bathroom Sink with Baking Soda and Vinegar? – A Step-by-Step Guide✅

Dealing with a clogged bathroom sink can be a frustrating experience, but fear not – there’s a simple and cost-effective solution using a common household item: baking soda. In this step-by-step guide, we’ll walk you through the process of unclogging a bathroom sink with baking soda, offering an easy and natural alternative to commercial drain cleaners.

Identifying the Clog

Before you start the unclogging process, it’s essential to determine the cause and location of the clog.

Signs of a Bathroom Sink Clog

  1. Slow Drainage:
    • Water taking longer to drain than usual is a clear indication of a clog.
  2. Gurgling Sounds:
    • Unusual gurgling or bubbling noises from the drain can suggest a blockage.
  3. Standing Water:
    • If water stands in the sink after use, there’s likely a clog preventing proper drainage.

Gathering the Supplies

For this natural unclogging method, you’ll need a few household items.

Materials Needed

  1. Baking Soda:
    • A versatile and effective household ingredient.
  2. Vinegar:
    • White vinegar works well to create a chemical reaction with baking soda.
  3. Boiling Water:
    • Hot water helps flush away the loosened debris.

Steps to Unclog with Baking Soda

Now, let’s dive into the process of unclogging your bathroom sink using baking soda.

1. Remove Excess Water

If there’s standing water in the sink, use a cup or bowl to scoop out as much as possible.

2. Pour Baking Soda

Carefully pour about a half cup of baking soda directly into the drain.

3. Add Vinegar

Follow the baking soda with a cup of vinegar. You’ll notice fizzing and bubbling – this is the chemical reaction that helps break down the clog.

4. Let It Sit

Allow the baking soda and vinegar mixture to sit in the drain for at least 15 minutes. This gives it time to work on breaking down the clog.

5. Pour Boiling Water

After the waiting period, carefully pour a kettle of boiling water down the drain to flush away the dissolved debris.

6. Repeat if Necessary

For stubborn clogs, you may need to repeat the process or try using a plunger for additional force.

Preventive Measures

Taking preventive measures can help avoid future clogs in your bathroom sink.

Preventive Tips

  1. Regular Maintenance:
    • Use the baking soda and vinegar method monthly as a preventive measure.
  2. Install a Drain Strainer:
    • Place a drain strainer to catch hair and debris before they enter the drain.
  3. Avoid Pouring Grease:
    • Refrain from pouring grease or oily substances down the sink, as they can contribute to clogs.


In conclusion, unclogging a bathroom sink with baking soda is a simple, natural, and effective solution. By following these steps and incorporating preventive measures, you can maintain a smoothly flowing drain without resorting to harsh chemicals. If the clog persists despite your efforts, or if you encounter more severe plumbing issues, it’s advisable to seek professional assistance. Enjoy a clear and efficient bathroom sink with this easy DIY unclogging method.