What happens if you use acid to unclog a drain?
Using acid is a bad idea, for several reasons. For starters, it can seriously corrode your sink, drainage pipes, and fittings. It can react with other chemicals or materials to release toxic gases. Its presence will make any further attempts to clear the blockage much more hazardous.
What can I use instead of sulphuric acid to unclog drains?
For future reference, use lye instead of sulphuric acid to unclog your drains. Buy a lye solution, not the solid. There are readily made commercial products containing lye out there. Look for “NaOH” or “Sodium hydroxide” on the label.
What do Plumbers use to unclog drains?
Talking about drain cleaning, plumbers use muriatic acid to unclog the drains. Muriatic acid is very effective for cleaning drains. The fact that it’s acid, more specifically a sort of hydrochloric acid solution, means that it needs to be used with very great care.
Can you use acid acid to clean drains?
Acidic drain cleaners should be a last resort and only used when other drain cleaning chemicals don't work fast enough or can't do the job. They're hazardous and not particularly good for the pipes or the environment, and some countries, such as the UK, prohibit their use by anyone other than licensed professionals.
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Is it OK to pour acid down the drain?
If your home has a septic tank, certain chemicals can interfere with the performance of the tank. It's best to avoid acidic chemical cleaners that contain sulfuric acid or hydrochloric acid. Both can cause damage to drains, pipes, and tanks. These types of cleaners should be used only by a professional.
What acid do plumbers use to unclog drains?
Hydrochloric acidHydrochloric acid, otherwise known as muriatic acid, is commonly used by plumbers around the world to clear a clogged rain. It is a strong acid that can cause serious injury if it is not used with care.
What is the best chemical to unclog drains?
These are the best drain cleaners, according to testing:Best Overall Drain Cleaner: Drano Max Gel Liquid Clog Remover.Best Drain Cleaner for Hair Clogs: Liquid Plumr Clog Destroyer + Hair Clog Eliminator.Best Single-Use Drain Cleaner: Green Gobbler Drain Opening Pacs.Best Enzymatic Drain Cleaner: Bio Clean.More items...•
Will muriatic acid damage PVC pipes?
Muriatic acid may not hurt PVC or other drain lines, but it is much too aggressive for monthly maintenance and it is potentially dangerous to use if not careful. It can cause serious burns to you and the fumes are horrible.
Can acid damage pipes?
Pipe Damage The hydrochloric acid can break down the coding in your pipes. Over time if you continue to use it, it can cause your pipes to corrode and holes to form. The damage from it can cost more than regular professional drain cleanings or DIY solutions.
Does sulfuric acid hurt pipes?
Because it corrodes metal, sulfuric acid can damage chrome, stainless steel and galvanized steel plumbing pipes. It's recommended for use only if you have plastic plumbing pipes, and even these can sustain heat damage if you introduce the drain cleaner too quickly or use too much of it.
Can I use sulfuric acid in my drain?
Sulfuric acid is very simple to use and will unclog a drain within an hour, usually within seconds if it's not completely plugged up. Sulfuric acid is naturally occurring and is sewer and septic safe as it is diluted in its journey down your pipes.
What will dissolve hair in a drain?
Combining baking soda and vinegar is a natural way to dissolve hair clogs, without resorting to harsh chemicals. Pour a cup of baking soda down the clogged drain first, and then after a few minutes add a cup of vinegar.
Can Coke unblock drains?
Coke. Coke is a lesser-known fix you can find in your refrigerator. Pour a 2-liter bottle of cola — Pepsi, Coke, or generic brand substitutes — down the clogged drain. Coke is actually quite caustic and effective at clearing away buildup in your drains, but it's far milder than commercial drain cleaners.
Can muriatic acid clear clogged drains?
Hydrochloric acid, also known as muriatic acid, is the most common acid used by plumbers to unclog drains.
Does acid dissolve PVC?
Types. Oxidizers, acids, and caustics are examples of drain cleaners that can cause PVC pipes to melt or become soft. Sulfuric acid and hydrochloric acid are the active ingredients of acid cleaners.
Can muriatic acid be used to unclog a toilet?
Mix one part muriatic acid to five parts water and slowly pour that solution into the toilet bowl. Add just enough to come up to the normal water level in the bowl. If you add any extra, it will go down the drain line toward your septic tank. Let the acid solution sit in the bowl for two to three hours.
What acid is used to unclog drains?
Hydrochloric Acid. Hydrochloric acid, also known as muriatic acid, is the most common acid used by plumbers to unclog drains. Although this component can be found even in your own stomach, as part of the digestive acids, its pure concentrated form can only be purchased from certain stores if you carry a plumber’s license.
What to use if your drain doesn't clear up?
Instead, use safer methods like white vinegar and sodium bicarbonate, a drain snake, or a plunger. If your drain doesn’t clear up using these safe DIY methods, call a plumber. Your plumber might not use muriatic acid at all if they suspect that it might inflict damage on the pipes.
Can a drain clog be a problem?
Drain clogs can happen often, especially if you’re not careful what you are putting down the drain. Whether it’s scrap food or organic residue, it can accumulate in time and prevent water from draining properly. Luckily, clogged drains are most often a minor problem and can be solved easily, even with a little DIY.
Can you use acid to unclog pipes?
Even though it’s the most commonly used substance to unclog drains and pipes, it’s not advisable to use it on your own if you don’t have plumbing experience. Such acids can be dangerous to your health and they can actually damage your pipes if they interact with them chemically.
Can muriatic acid be mixed with other chemicals?
If you decide to apply this method to solve your clogged drains, be very careful when handling it, wear protective gear (gloves, long sleeves, glasses, and so on), and never mix it with other chemicals.
Can vinegar unclog drains?
Most often, when you research how to unclog your drain yourself, vinegar is mentioned. Other articles mention Cola drinks as an effective solution to clogged drains. These are, indeed, acids that can dissolve the gunk blocking your drain and get rid of the problem, as long as the clog is relatively recent or not too stubborn.
How to get rid of a clogged drain?
Flush the drain with plenty of water when the clog clears and the drain begins to flow. Neutralize the acid by mixing a solution of 1/4 cup baking soda per quart of water and pouring it down the drain. You can use this solution to neutralize any spills that occur. Advertisement.
What to use to clean a drain clog?
If your pipes are draining slowly, it's safer to use an enzymatic cleaner and let the situation slowly improve, but if the pipes are completely blocked and you can't use the sink, sulfuric acid can provide instant relief. Advertisement.
What is the best acid for drain cleaning?
Advertisement. Acids are the third class of clog-eating chemicals, and the best acids for cleaning plumbing pipes include hydrochloric acid and sulfuric acid. Acidic drain cleaners should be a last resort and only used when other drain cleaning chemicals don't work fast enough or can't do the job.
How to use sulfuric acid?
The time to use sulfuric acid is when all efforts to mechanically clear the drain, including plunging and snaking, have failed. Don't use sulfuric acid if you've recently introduced another drain-cleaning chemical because the chemicals could combine to create toxic fumes. After putting on protective clothing, covering vulnerable parts of the sink and drain and reading the application instructions on the product label, use the following procedure: 1 Open windows to provide ventilation. 2 Pour the recommended amount of drain cleaner (about 200 ml or about 7 ounces) slowly into the drain. 3 Wait for about 10 seconds, then turn on the faucet and allow water to flow slowly into the drain. If the drain backs up, turn off the water and wait a bit longer. 4 Pour more acid into the drain — up to 500 ml or about 16 ounces — if the clog doesn't clear. Wait even longer – several minutes to an hour — to give the acid time to work. 5 Flush the drain with plenty of water when the clog clears and the drain begins to flow. 6 Neutralize the acid by mixing a solution of 1/4 cup baking soda per quart of water and pouring it down the drain. You can use this solution to neutralize any spills that occur.
What is a liquid lightning drain opener?
Liquid Lightning drain opener is a buffered sulfuric acid solution that cleans scale and dissolves pipe clogs. It's widely available and costs about $10 for a 32-ounce container. It isn't safe for cast iron or galvanized steel pipes, though, so it's best not to use it if you have older plumbing. Advertisement.
How long does it take for acid to work in a drain?
Pour more acid into the drain — up to 500 ml or about 16 ounces — if the clog doesn't clear. Wait even longer – several minutes to an hour — to give the acid time to work.
How to clear a clogged toilet?
The safest, easiest and most effective way to clear a toilet clog is to use a plunger. When that doesn't work, you can be sure the clog is massive. Sulfuric acid is strong enough to eat through massive clogs, but it's generally not recommended for toilets, especially if the house is on a septic system. However, there's at least one sulfuric acid ...
What to do if you pour too much sulfuric acid down your drain?
To dilute this mess and prevent (further) damage, you should buy a box of baking soda and mix it with water. You should then pour this baking soda solution into the drain in question.
Why is sulfuric acid used in drains?
Sulfuric Acid is useful for unblocking drains because it can break down organic material. Unfortunately, a lot of people seem to forget the fact that they are also made out of organic material.
Do you need a respirator mask for acid pouring?
A respirator mask may also be needed, depending on the location and how difficult it is for the fumes to escape. If you are unable to purchase a respirator mask , then you should hold your breath while you are pouring the acid.
Can you use sulfuric acid in a drain?
Note that most plumbers do not recommend the use of chemicals such as Sulfuric Acid for drain cleaning. This is because they can be dangerous and they can cause damage to drainage systems. In a lot of cases, they will also prove to be a total waste of money.
Can you dump acid into water?
It is usually a bad idea to dump an the entire bottle of acid into a body of water. Make sure that you remove any excess water from the top of the blockage. For example: If your sink drain is blocked, then you should remove excess water from the basin so that you can pour the acid directly into the drain. Generally speaking, you should not be ...
How to get rid of a clogged drain with muriatic acid?
Measure out one half cup of water into a glass measuring cup; don’t use plastic for this. Add your muriatic acid to the water carefully, pour the diluted solution into the clogged drain, and leave for about 10 minutes. During this time the acid will work on the clog, heating it up, and breaking it up as promised.
What is the best way to clean a drain?
Baking soda. Muriatic acid is very effective for cleaning drains, although it should probably only be used after all else fails. The fact that it’s acid, more specifically a type of hydrochloric acid solution, means that it needs to be used with very great care. When you use muriatic acid for cleaning a drain, protect yourself thoroughly by wearing ...
How to use muriatic acid?
Prepare Yourself and the Area. You need to use muriatic acid in a well-ventilated room. Ensure that the windows are open, even if it’s cold outside, since the acid fumes can burn your throat if the room isn’t properly ventilated. Put on the gloves, mask, and safety goggles before opening up the acid.
How does muriatic acid work?
Source muriatic acid on Amazon. Muriatic acid is exceptionally strong and causes a chemical reaction with the items that are blocking the sink. The reaction creates heat, and that is what breaks up the blockage.
Can you use muriatic acid to clean drains?
To ensure our content is always up-to-date with current information, best practices, and professional advice, articles are routinely reviewed by industry experts with years of hands-on experience. Muriatic acid is very effective for cleaning drains, although it should probably only be used after all else fails.
Can muriatic acid be used in water?
For household purposes, you should never use muriatic acid without diluting the solution with water. This substance is very corrosive and if applied directly down the drain, your pipes may end up seriously damaged.
What is the best way to clean drains?
the only diy home remedy for cleaning drains is vinegar and bicarb soda at a ratio of a paste made with 3 tbs bicarb and water to a cup of vinegar. most drain cleaning formulas are caustic soda based which is strong alkali.
Why do sink drains have a trap?
Sink drains ares designed with a trap under them that remains full of water for health reasons, they stop sewer gas entering the home. You can remove this trap to get rid of most sink backups, be prepared for a spray of water and, thanks to your earlier mistake, chemicals like acids and alkalis.
What is the pH of draino?
Draino and similar products are strong bases, such as potassium hydroxide (KOH) with a pH of 14. Hard water is slightly basic (or alkaline). How “hard” the water is depends on how much Ca2+ and Mg2+ ions they add at the water treatment plant.
Can muriatic acid be added to water?
Chemists are always taught “add acid to water, never water to acid”.
Is muriatic acid good for drains?
Muriatic acid is very effective for cleaning drains. The fact that it’s acid, more specifically a sort of hydrochloric acid solution, means that it needs to be used with very great care. When you use muriatic acid for cleaning a drain, protect yoursel. Continue Reading.
Does hard water strengthen pipes?
Beyond that, hard water actually strengthens pipes, by adding a crusty precipitate. Water that is slightly basic (7) up to drain un-cloggers which are as basic as can be (14): these solutions are generally safe for pipes.
Is muriatic acid acidic?
Muriatic acid is HYDROCHLORIC ACID. You should not even pour vinegar down your drain it is acidic enough to cause lead oxides to become free lead ions (element Pb), which when consumed accumulate in the body as lead poisoning. Draino is a base (alkaline, pH >7), it cannot destroy pipes.
Safety Measures when Using Sulfuric Acid as a Drain Cleaner
When sulfuric acid is poured down the drain, it quickly reacts with the clog and in the process gases like sulfur dioxide and hydrogen sulfide may be formed. These gases are toxic and hence the need to pour the acid slowly, make sure the room is properly ventilated and wear PPEs.
Using Sulfuric Acid Drain Cleaner to Clear Toilet Clogs
Sulfuric acid drain cleaners are very effective in clearing clogs in sink, tub and shower drains. The same is however not recommended for clogged toilets.
Alternatives to Sulfuric Acid Drain Cleaners
If you are dealing with a clogged bathroom or kitchen sink, there is any easy way to remove the clog if you do not wish to use sulfuric acid.

The Dangers of Sulfuric Acid.
- Muriatic acid is an industrial strength solution of hydrogen chloride gas dissolved in water. This chemical is also known as hydrochloric acid. While this acid has many household uses, clearing out clogged pipes is not recommended.
Precautions to Take When Using Sulfuric Acid.
Does It Always Work?
How to Dilute it.