Walking into your bathroom to see your sink filled with water that won't drain is frustrating, isn’t it? Before you rush to dial a plumber and fork over a couple hundred bucks, it might be a good idea to try some quick-fix techniques. Here, we'll walk you through the steps recommended by Prometheus Home Services that you can perform right at home.

Understanding the Problem

You might be wondering, why won't my sink drain? Here's the thing – it could be due to a variety of reasons, including:

Possible Causes

  • A buildup of substances like hair, soap, toothpaste, or other materials.
  • A malfunctioning sink stopper.
  • The pipe is blocked further down.

DIY Plumbing Techniques

Before getting started, make sure to empty your sink bowl of most of its water. We don't want to cause a bigger mess than necessary, right?


Remember, we need enough water to create a good seal around the plunger but not so much that it spills over. Got that balance right? Great! Now, lightly plunge the drain and check if the water begins to drain or if any debris surfaces from the pipes.

Using Baking Soda and Vinegar

Feeling like a science experiment? Try this trick. Empty the sink until it is completely dry, trying to extract as much water from the drainage pipe as you can. Next, fill the drain with about ½ to 1 cup of baking soda. Double that amount with vinegar and pour it into the drain, quickly stopping it with a rag or plug. Wait for the magical reaction in your drain, and voila! Your drain might just unclog.

Using Boiling Water

Did you know that boiling water can be a great preventative method to clean your sinks and prevent your drain from clogging? That’s right! Just carefully pour it down the drain and let it do its work.

Safety Measures

Whether you’re plunging, mixing baking soda and vinegar, or pouring boiling water down your sink, always remember to keep safety first.

How to Prevent Future Clogs

Regular Cleaning

Cleaning your sink regularly with boiling water can do wonders. This simple method can help prevent future clogs and keep your sink fresh and clean.

Avoid Blocking Substances

Try to avoid letting substances like hair, soap, or toothpaste go down the drain. They can easily build up over time and cause a clog.

When to Call a Professional

If all else fails and your sink is still refusing to drain, it might be time to call a professional. They can inspect your plumbing system thoroughly and address the issue effectively.


Troubleshooting a bathroom sink that won't drain doesn’t have to be a nightmare. With these simple DIY techniques, you can save yourself the hassle and the expense of calling a plumber. But remember, if the problem persists, don’t hesitate to seek professional help.


1. Can I use chemicals to unclog my sink? While chemicals can unclog a sink, they may also cause damage to your pipes. Natural methods like baking soda and vinegar are safer options.

2. Why should I use baking soda and vinegar? Baking soda and vinegar create a chemical reaction that can effectively dislodge a clog in your sink.

3. What causes a sink to clog? Common causes include buildup of substances like hair, soap, or toothpaste.

4. What can I do to prevent future clogs? Regular cleaning and avoiding blocking substances can go a long way in preventing future clogs.

5. When should I call a professional? If you've tried all these techniques and your sink still won't drain, it's time to call a professional.

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