Why pour salt down the drain overnight?

Author: Audreanne Baumbach Jr.  |  Last update: Sunday, September 28, 2025

Why Salt? One homemade “remedy” for a clog is to pour salt down the clogged drain at night. The theory goes that the salt somehow dissolves greasy deposits on pipe walls.

Will salt damage PVC pipe?

Too much salt may only exacerbate the clog by creating a solid salt barrier that makes it harder to dissolve any remaining debris. If you have PVC pipes, the risk of corrosion is less, but salt can still cause a build-up of salt deposits over time, potentially leading to further blockages.

Why should you never use baking soda and vinegar to unclog a drain?

Baking soda is abrasive, which, when used in large quantities, will cause the drain more damage. Additionally, the acidic nature of vinegar can eat away rubber and metal, damaging the plumbing. As these products break down the pipe and connectors in the plumbing in your home, it will cause more clogs over time.

How much salt do you put in a drain?

After removing standing water from the sink, pour about half a cup of table salt down the drain before you pour in the hot water. Let it sit for a few minutes, and then flush with hot water to clear the mixture.

Why pour salt down the toilet?

Pouring salt down the drain at night can help prevent the growth of odor-causing bacteria and alleviate mild clogs by breaking down grease and debris. Additionally, the abrasive nature of salt can help scrub away residue on the sides of the pipes.

Pour salt down your drain AT NIGHT...here’s why 😳💥(be amazed)

What does putting salt in a toilet do?

When introduced into the toilet bowl, salt begins to dissolve, creating a saline solution that can break down light deposits of lime scale and mineral build-up. It can also act as a mild abrasive which aids in scrubbing away grime and organic matter.

What is the salt down the drain trick?

Salt and Homemade Drain Cleaners

For effective cleaning, a cup of salt is added to the same quantity of baking soda and then poured down the drain; and flushed the next morning—the flush is done via hot boiling water. Homemade dry cleaners work well to clean the drain, yet it is important to look for better options.

Does pouring vinegar down the drain help?

Vinegar. Vinegar is both safe and beneficial to pour down your drain. It acts as a natural cleaning solution and can remove blockages and harmful bacteria that cause foul odors.

What is the best homemade drain cleaner?

Baking Soda + Vinegar
  • Pour 1/2 cup baking soda, followed by 1/2 cup vinegar down drain.
  • Plug drain and let sit for one hour.
  • Then, pour a pot of boiling water down drain. Repeat if necessary.

Does salt clear a clogged drain?

If you are a bit salty because this turned out to be a myth, we have news for you. It isn't entirely false. If you pour salt down your drain, it will not do anything to unclog it.

What will dissolve hair in a drain?

Heat 2 or 4 liters of water on your stove or in a kettle to just short of boiling. Add about 1/2 cup of salt. Try pouring this down the drain, then wait 15 minutes before seeing if it will clear more easily. If you need a stronger cleaning, pour 1/2 cup of baking soda down the drain, then add 1/2 cup of vinegar.

Can I pour boiling water down the drain?

Pouring boiling water is quite risky as it might lead to a steam burn or scalding. Another thing to keep in mind is what type of material you are pouring in into. If you have a porcelain sink, it is likely to crack due to the heat. All in all, pouring boiling water down your drain will only cause issues down the road.

Does vinegar damage PVC pipes?

While harmless for most metal and PVC pipes, prolonged exposure to the acidic nature of vinegar might corrode certain metals, like copper. PVC pipes, on the other hand, can withstand these substances without damage.

Is boiling hot water bad for pipes?

Chemical cleaners can eat away at your pipes, and boiling water can melt important components. Over time, this damage can lead to leaks and expensive plumbing repairs.

What does bleach do to PVC pipe?

4 – Bleach can damage pipes.

Bleach reacts with metal and is very corrosive, with rust or oxidation caused by the trading of electrons between the metal and bleach molecules. Copper pipes can also be damaged making them more prone to plumbing leaks. With PVC pipes, bleach dissolves the sealant used around the pipes.

Is Epsom salt good for drains?

It has been used in many households as an effective declogging tool. Epsom salt effectively removes any biodegradable waste and grime in the drains causing the clog. However, be careful not to overuse Epsom salt as it could damage the gutters, especially ones made from stainless steel.

How to make a drain snake?

To make a drain snake, all you need is a wire coat hanger that you can unwind and straighten. Bend the end of the wire into a hook shape and insert it into the drain. Move it around until you feel resistance and then pull out any hair or debris that may be blocking the drain.

Can you use Dawn and baking soda for drains?

Tbs of Dawn dish soap - 1/2 cup of baking soda- 1 cup of vinegar. Try it out! You might be startled by how much gunk will come out!#

How to fix a stinky drain?

Pour a cup of baking soda into the drain, and follow it up with two cups of hot vinegar (near boiling point). Allow the mixture to fizz and leave for an hour. Pour hot tap water down the drain and see if the clog clears.

What to pour down the drain to stop roaches?

Pour 1/4 cup baking soda down the drain and follow it with 1/2 cup vinegar. The chemical reactions between these two ingredients should be enough to get rid of any waste in the drain. Wait for a couple of minutes and then pour boiling water down the drain.

Can you leave baking soda and vinegar in the drain overnight?

Allowing the baking soda and vinegar mixture to sit in the drain for an extended period, such as overnight, can improve its effectiveness. The prolonged contact with the clog helps break down the build-up more thoroughly, making it easier to flush away with hot water the following morning.

Is drano bad for pipes?

The Short Answer Is: Drano and similar chemical drain cleaners can be harmful to home drain pipes as they contain corrosive chemicals that may deteriorate pipes over time, especially if used frequently.

What does salt in the toilet bowl do?

Deep cleaning : thanks to its abrasive action, salt eliminates stubborn stains and encrusted residues, leaving your toilet spotless. Deodorizing action : coarse salt neutralizes unpleasant odors and leaves a feeling of freshness in your toilet.

Is it safe to pour boiling water down a kitchen sink?

Firstly, assess the material of your pipes; if you have metal pipes, boiling water is less likely to cause harm. However, for PVC or other plastic pipes, it's advisable to use hot water instead of boiling to avoid damage.

Is thrift drain cleaner safe?

THRIFT is safe to use on most kitchen or lavatory surfaces. Competitor's product may not be safe on acrylic, fiberglass or other surfaces. THRIFT is an odorless formula and is ideal for use in hospitals, schools, hotels or any place noxious fumes may cause a problem.

Previous article
How to clear a clog in a shower drain?
Next article
Can I internally insulate a filled cavity wall?