How to Clear a Blocked Drain Using Salt, Baking Soda, and Boiling Water

Quck answer

To unclog a drain using salt, baking soda, and boiling water, follow these simple steps:

1. Start by pouring a pot of boiling water down the drain. This helps to soften any clogs and flush them away.

2. Next, pour half a cup of salt down the drain. Salt acts as an abrasive and helps to break up any stubborn debris.

3. Follow the salt with half a cup of baking soda. Baking soda reacts with the salt and creates a foaming action, which helps to dislodge the clog.

4. Let the mixture sit in the drain for 10-15 minutes to allow the ingredients to work their magic.

5. Finally, pour another pot of boiling water down the drain to flush away any remaining debris.

By following these steps, you can effectively unclog a drain using simple household ingredients.


Clogged drains are a common problem in households and can occur quite frequently. Whether it’s the sink, bathtub, or shower, all of these drains can become blocked, resulting in water overflow that can cause significant damage. What many homeowners may not know is that you can actually clear a blocked drain using salt, baking soda, and boiling water.

What Causes Drain Blockages?

There are several reasons why drains can become blocked, but regular maintenance of your plumbing system can help prevent them. Many people may not realize just how much debris goes down the shower drain or kitchen sink until they find themselves trying to clear the drain and removing clumps of hair and slimy buildup.

Over time, the tiny hairs from shaving or bits of food that get rinsed down the drain start to stick to the sides of the plumbing and create obstructions in the pipes. These clumps that accumulate inside the plumbing are the initial stage of a larger buildup that eventually leads to a blocked drain. The good news is that calling a plumber or handyman should not be your first course of action. There are effective home remedies using salt and hot water to clear blocked drains.

How to Clear a Blocked Drain with Salt, Baking Soda, and Boiling Water

Instead of rushing to the hardware store to buy heavy-duty drain cleaner when faced with a blocked drain, why not try using common household items to solve the problem? There are various mixtures and techniques you can use, but the main ingredients that will come in handy are baking soda, salt, vinegar, and boiling water.

When you combine baking soda and salt in a ratio of 2:1, you create an excellent cleaning agent for clearing a blocked drain.

  1. Pour the mixture down the drain (use a larger ratio like 1 cup of baking soda to 1/2 cup of salt for a more powerful clean).
  2. Allow the powder to sit in the drain for a few hours. This gives the baking soda and salt enough time to activate and start breaking down the accumulated sludge.
  3. Finish by pouring some boiling water down the drain, and it should be back to normal.

You can also achieve a thorough clean by using only baking soda followed by vinegar. The key is to first soften the sludge and pipes with boiling water, then pour the baking soda into the drain. Follow this with vinegar, which will create a bubbling chemical reaction that will get rid of the stubborn blockage. If the simple methods of baking soda or salt don’t work, then more drastic measures may need to be taken.

The Significance of Ratios

The ratio of baking soda and vinegar when cleaning drains is crucial because they cause slight chemical reactions. Start with small amounts and gradually increase the quantities if you’re not getting the desired results. Avoid pouring an excessive amount of baking soda down the drain. If you follow that with vinegar, you’re likely to have an eruption on your hands, resulting in a messy cleanup (think of volcanoes from your elementary school science fair, but in your bathroom sink).

After the drain is flowing smoothly once more, performing routine upkeep using the same materials and techniques would be advantageous. This will prevent any blockages in the future and maintain the proper functioning of your plumbing. Regular maintenance and cleaning are not only crucial for the bathroom drains, but for the entire room.

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