Acid Wash Pool: Issues And Guides

Acid Wash Pool: Issues And Guides

Without an acid-wash pool, swimming pool stains are removed. Keep in mind that acid wash removes surface cement. The smooth outer layer of your pool’s interior can be removed and disintegrated using acid washing. We will inform of you all issues and steps about the acid wash pool.

What Does It Mean To Acid Wash Pool?

Here, regular cleaning isn’t all that’s being discussed. Anytime you include the word acid, it should be clear you’re not talking about a regular anything. When your acid wash pool, you’re bringing out the big guns.

You are aware that a dermatologist can use mild acid to exfoliate your face? The top, thin layer of skin is removed to reveal the fresher, younger skin below. The result is a smoother, brighter complexion, although you will undoubtedly appear sunburnt for about a week. That is what an acid wash does for your pool.

An acid wash actually removes a thin layer of plaster from the pool’s surface rather than just cleaning the surface. Stains left behind by chlorine, algae, minerals, and plain old dirt are eliminated along with the plaster layer, revealing a new, clean layer of plaster beneath.

Does removing plaster sound scary? Don’t worry; the plaster coating on a pool is typically at least ½ an inch thick, and the acid only dissolves a very thin layer of it.

What Kinds Of Pools Can Be Acid Washed?

Though it should go without saying, let’s be certain just in case. Only an inground concrete or gunite pool will require acid washing.

Never use an acid wash on an above-ground pool or an inground pool that has vinyl lining. You will eventually need to replace the liner entirely because the acid will eat right through that vinyl.

Should You Acid Wash Pool?

Your pool’s surface and water may appear grimy due to algae buildup and pool stains. You won’t want to just sit by your pool and stare at the dirty tiles and water, you won’t want to dive into your oasis either. Is this how your pool looks?

When To Acid Wash Your Pool?

The floor and walls of your pool will eventually begin to show signs of wear, regardless of how well you maintain it and keep the water balanced.


Over time, stains will be left behind by dirt, minerals, and chlorine. It might be time for an acid wash if brushing and vacuuming are no longer effective.


If you’ve ever experienced algae issues, those may have also left some stains behind. Or, if you frequently experience algae blooms, it’s possible that routine cleaning doesn’t completely remove all the spores. Start over with a clean, acid-wash pool to get rid of those spores.

However, the last resort is acid washing to remove algae. Prior to using one method, experiment with others. If you choose to acid wash your pool, make sure to also replace the media in the filter to ensure that there aren’t any leftover algae.


Only an acid wash will revive a pool that has been stagnant for a while, allowing algae and dirt to truly take hold. Lack of proper winterization results in stagnation and may tarnish the plaster’s appearance.


You might not always need to acid-wash the whole pool. If you’re repairing pool plaster, for instance, acid washing the area can get rid of the algae before you apply new plaster. Can you picture the new plaster if algae spores were added? They would never go away, and the algae would simply keep reappearing.

Wear And Tear

Sometimes an acid wash is not necessary because of stains, algae, or stagnation. The plaster may simply be faded or discolored as a result of years of exposure to chemicals and the sun. In those situations, an acid wash will enhance your pool’s appearance and restore the clear, clean appearance it had when it was first built.

How Often To Acid Wash Pool?

An acid wash will only remove a very thin layer of plaster, but you shouldn’t do it every year. You would quickly run out of plaster!

Barring any severe issues with algae blooms, every five years or so is sufficient.

How Acid Wash Pool Works?

In order to remove dirt and buildup from your pool’s surface, a process known as acid washing uses water and chemicals, primarily hydrochloric acid, also referred to as muriatic acid. Once the staining and other grime have been removed, a professional pool cleaner will use a brush. The chemical wash makes it simpler to remove built-up stains and algae from the surface of your pool.

What Type Of Algae and Stains Will Acid Wash Remove?

Different kinds of algae and staining will appear in your outdoor oasis, whether it is a plaster pool or a Pebble Tec pool.

Magnesium Stains

Magnesium may be present in your pool’s water, depending on the kind you use to fill it. A pool’s discoloration can include pink, red, and even black due to an excess of magnesium. Acid washing in the pool is effective at removing magnesium stains.

Copper Stains

Copper stains, which are typically high in all minerals and appear similar to magnesium stains when your pool’s source water is well water, can also happen. Pool acid washing can get rid of copper stains, which cause blue, green, and black stains in your pool.

Hard Water

Calcium deposits result in the formation of hard water stains, also known as scum. Where the tile meets the water at the edge of your pool, these deposits are frequently discovered. Hard water stains cause cloudy water and a lower-than-safe pH level in the water. Additionally, pool acid washing can eliminate hard water stains.

Algae Growth

The most prevalent strain that pool owners try to have removed through acid washing is algae growth. Algae growth is brought on by inadequate pool cleaning, an unbalanced pH level, and poor pool circulation. Health problems and clogged pool filters can both be brought on by the growth of algae. Acid washing in a swimming pool can aid in removing algae growth and stop any further harm from happening to you or your oasis.

acid wash pool

Is Acid Washing Safe?

As previously mentioned, pool acid washing necessitates the use of harsh chemicals. The harsh chemicals required to properly clean your pool can easily cause injury if you’re not a professional pool cleaner. Hiring a professional is ideal if you want to have your pool acid-washed because it’s good for both the pool’s safety and your health and safety. Pool acid washing, when not done correctly, can cause:

  • Chemical burns on the skin if protective gear is not worn
  • Lung damage if the chemicals are breathed into the body
  • Discoloration on your pool’s surface
  • Damage on your pool’s surface

Since pool washing should only be done once every 5-7 years, it is best to consult a professional pool cleaner to ensure that the job is done correctly and without causing any harm.

How To Acid Wash Pool Safety?

Did we mention we’re talking about using acid? It’s a corrosive substance that necessitates specific and recurrent safety measures to prevent harm.

Wear the Right Kind of Mask

Muriatic acid, the type of acid used to acid wash pools, emits noxious fumes. If you already have an upper respiratory condition like asthma, it may make breathing difficult.

Therefore, you cannot use any mask when attempting this task. One that will stop acid fumes is what you need.

Wear the Right Kind of Gloves

Work gloves, dishwashing gloves, and gardening gloves are all no. All of those combined do not suffice. To make sure the acid doesn’t eat through the material and reach your hands, you need chemical-resistant gloves that specifically resist acid.

If you do happen to get any acid on your skin, rinse it off immediately, and keep the spot under running water for at least 30 seconds. It won’t be too bad, but you might still end up with a slight burn. However, if you don’t immediately rinse the acid off, you risk getting a severe burn.

Apply some soda ash to the gloves to neutralize any acid residue after thoroughly rinsing them off after acid washing your pool. Then remove them after another rinse.

Wear Safety Goggles

Your skin may not be significantly harmed by acid (if it is quickly rinsed off). Your eyes, however, could suffer great damage. You might even go blind if the acid harms your cornea. Literally.

Always, always, always wear safety goggles when working with acid. Put them on before you start, and keep them on until the task is complete, the acid has been neutralized and stored, and the gloves that came into contact with the acid have been taken off. Before putting the goggles away, rinse and dry them.

Important: If acid accidentally splashes into your eye, immediately flush it out with clean water for at least 15 minutes. Do not rub your eye. When you’re done rinsing, seek medical attention immediately.

Wear Appropriate Clothing

Even though it might be hot outside when you decide to acid wash your pool, we strongly advise that you wear long pants, a long-sleeved shirt, and closed-toe shoes.

You can get a burn and possibly a scar by simply getting a tiny splash of acid on your skin. What would happen if you dropped the acid container and it splashed on you in large amounts? That scene doesn’t require a description, does it?

Note: The best footwear for acid washing a pool is chemical-resistant boots. Make sure they’re acid-resistant. Prior to getting out of the pool, don’t forget to rinse them off. before you enter your home again, take them off.

Note for Women: Use a size conversion chart to select a man’s size that will fit you if you are having trouble finding a pair of women’s chemical-resistant boots.

Avoid Acid Splashes

Pouring the acid slowly is the best method for accomplishing this. After that, slowly and gently lower the acid container to prevent any splashing.

When not in use, tightly seal the acid container and place it somewhere it can’t be accidentally knocked over.

When you are finished acid washing your pool, store the acid container in a cool, dry location where children or pets cannot access it.

Dilute Acid in the Right Order

You won’t be applying acid with full strength to your pool’s surfaces. Before you can rinse it off, it will begin to consume the plaster. You must first dilute it.

Always add the acid to the water you’re diluting it with. Never add water to acid. It may result in a boilover.

A lot of heat is produced when acid and water are combined. When water and acid are combined, the majority of the compound is water, which regulates the heat and keeps the mixture from boiling over.

When acid and water are combined, the resulting compound contains a large proportion of acid, and the heat that is released causes the mixture to violently boil over and spill out of the container.

At that point, the compound is still primarily acid, so whatever splashes out will be extremely caustic and could burn you and the area around you.

So once again: Always add acid to water, never the other way around.

Important: Keep other chemicals away from acid. The outcome can be toxic fumes, minor explosions, or both, depending on the chemical.

acid wash pool

Keep Kids and Pets Away

Children and animals should not be anywhere near the pool area while you are acid washing it. You might believe that it’s okay for them to observe from a distance where they won’t be splashed.

However, keep in mind that acid emits fumes that, in the right wind conditions, your child or pet may be able to inhale and cause lung damage.

There is no point in taking any chances. During an acid wash, keep children and pets inside and out of the vicinity of the pool.

Don’t Acid Wash Your Pool on a Windy Day

Replan your acid wash if it turns out to be a windy day. You don’t want acid fumes to enter your home or the yard of your neighbor, where they could cause harm to someone.

Don’t Rush the Job

To prevent the acid from causing any damage, you must act quickly. However, trying to rush a process is a recipe for disaster. Errors are made in this manner.

Have everything you need ready and carefully follow all directions after reading all the instructions.

Keep the Pool Deck Clear

In most cases, falling into a swimming pool won’t hurt unless you hit the water’s belly first. However, falling into an empty pool can be fatal.

While the pool is shut off, remove all furniture, playthings, planters, and anything else that could cause a trip hazard from the pool deck. And while you acid wash pool, pay attention to your surroundings. Make sure anyone assisting you is aware of the potential risks as well.

Have a Wastewater Disposal Plan

When you drain your pool and acid wash it, you’ll need to know how to dispose of the water. There are stringent laws governing the disposal of wastewater in some cities and municipalities. If you don’t abide by those regulations, you might even be fined.

The acid/water mixture you’ll have left over after cleaning your pool needs to be disposed of, so you should know how and where to do that. The acid mixture can still harm plants and even kill animals after it has been neutralized.

Ask your local water authority how to properly dispose of the pool water and the acid/water mixture before you begin acid washing your pool.

Follow the Manufacturers’ Instructions

In addition to all the safety precautions we can think of, you might find a few more on the labels provided by the manufacturers. Before you even crack open the acid container, read them and strictly abide by them.

Disclaimer: We are neither doctors nor acid specialists. The safety measures we’re outlining here are based on knowledge and common sense, but we can’t be held liable for any mishaps that might happen, whether or not you heed them and the manufacturer’s warnings. Make sure you’re doing your due diligence and everything possible to prevent hurting yourself and other people. Hire a pro to acid wash your pool if you don’t think you can keep the area safe while using acid.

Acid handling should not be done carelessly. To ensure your safety and well-being, put on the safety equipment that is advised and adhere to all procedure-specific and manufacturer-specific instructions.

How To Acid Wash Pool?

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