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InsightHorizon Digest

What does it cost to acid wash a pool

Author

Joseph Russell

Updated on March 31, 2026

The average cost to acid wash a pool ranges from $178–$255, for a pool measuring 500 square feet, according to Improvenet. Most homeowners in the U.S. will typically pay $. 28 per square foot when performing this thorough cleaning process.

How much does it cost to have pool acid washed?

Average pool acid wash cost is $202, cost ranges between $178 to $225 for a pool measuring 500 square feet, according to Improvenet.com in the US in 2020. Of course, prices will vary based on location, size of the pool and the time of the year.

How often should a pool be acid washed?

If you regularly clean your pool and keep it in good shape, chances are you will only need to acid wash your swimming pool every 5-7 years. Because acid washing uses harsh chemicals, it is not recommended to get your pool acid washed more frequently than that, as the harsh chemical used can damage your pool’s surface.

How much does it cost to acid wash an inground pool?

cost to acid wash a poolNational Avg. Materials Cost per square foot$0.06National Avg. Cost (labor and materials) for 300 square foot$131.79National Cost Range (labor and materials) for 300 square foot$119.76 – $143.82

How much is it to drain and acid wash a pool?

ACID WASH PRICES: Complete drain & clean charges average $750 for a residential pool. Higher costs may be seen for large amounts of debris in the pool, excessive neglect, or larger sized pools. Lower costs will be realized for clean or empty pools, or localized acid washing.

How do you acid wash a pool without draining it?

  1. Add 16 oz of Super Stain Away per 10,000 gallons.
  2. Add 8 lbs of pH Decreaser (Sodium Bisulfate) per 5,000 gallons.
  3. Check Total Alkalinity to be sure it’s at zero; if not add more pH Decreaser.
  4. Brush pool several times per day, with a steel pool brush, Test water each day.

How long does it take to acid wash a new pool?

Filling the Pool The following day, they will perform the acid wash itself, which can take anywhere from 4 -5 hours to complete. After that, the pool can be refilled.

Can you use a power washer underwater?

As stated above you probably can technically use your pressure washer underwater. However, it will not be able to actually clean much. The water that is already in the pool will zap the strength and power of your system and it just will not be able to do much of a clean.

How often should you acid wash a Pebble Tec pool?

Because of the Valley’s hard water and high summer pool evaporation, we recommended you drain and acid wash your pool every two to four years to help remove excess calcium, algae and other contaminates that may lead to interior pool staining and that unsightly white ring on your pool tile and pebble-tec surface.

Can you swim in pool after acid wash?

According to Clean Pool and Spa, you should wait no less than two hours before swimming in a pool which has been treated with muriatic acid. According to the website, “If you pour muriatic acid in the pool and swim within 10 to 15 minutes you might get a ‘hot spot’ of acid that can burn you.”

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Does acid wash damage pool?

Your pool generally only needs an acid-washing every five to seven years if you regularly treat and maintain the water in it. Acid-washing your pool more often can damage the plaster coating inside the pool because the acid strips away a small layer of it each time you do it. … This may be enough to clean the pool.

What causes brown stains on bottom of pool?

In this instance, brown pool stains can have one of a few causes: algae, metal, or dirt buildup. … And brown stains concentrated on the bottom can likely be attributed to dirt stains, typically enhanced by calcium buildup. The first step to deal with organic materials is to shock your pool, and scrub it.

Can you acid wash a Pebble Tec pool?

Acid washing is a process that is done on a pebble tec® or plaster pool to remove a thin layer of the surface to remove stubborn stains and calcium deposits. The pool is drained and the sides scrubbed. Then a solution of muriatic acid and water is applied to remove the top coat of the pool.

How much does it cost to acid wash a pool in Arizona?

Most acid washing procedures cost around $300 (depending on company, time of year, availability, cost of chemicals, etc). This sounds like a lot, but it includes the draining, cleaning, and chemicals, all of which can be costly individually.

Can you acid wash a fiberglass pool?

The fiberglass pools can be acid-washed. … You can use ascorbic acid without draining the pool. However, check the alkalinity and pH of the water before getting back into the pool, since the acid will significantly change the pH and alkalinity of your pool water, both during and after the cleaning process.

How do I get brown stains off the bottom of my pool?

A good rule of thumb is to use half a pound of ascorbic acid per 10,000 gallons of water in the pool. If the stain was caused by metal, the scrubbing would remove or at least lighten the stain. If the stains are still visible, add more ascorbic acid. Repeat this process until the stains are gone.

Can you pressure wash a pool?

Requirements. Only pools constructed of plaster, exposed aggregate or concrete are strong enough to withstand the power of a pressure washer. Any other type of pool, such as vinyl or fiberglass, must be cleaned using chemical treatments or using non-abrasive methods.

How do I acid bath my pool?

The acid wash process Wet the pool floor with the hose and then pour the acid mixture from the highest point using a watering can working your way down the pool toward the deep end. Rinse off the acid 15-20 seconds after it is first applied using a brush and the hose.

Can you power wash a full pool?

Prepare your pressure washer with the proper ratio of pressure washer detergent to water. … Setting your power washer on high-pressure, start with the walls and wash from the bottom-up. Make your way around the entire pool, going over spots as many times as needed to remove dirt.

Is it OK to leave a Pebble Tec pool empty?

You should never enter an empty pool. We recommend that you wait until the pool is completely finished, filled and that the water is chemically balanced to start enjoying it.

Is Pebble Tec worth?

Overall. Pebble Tec pools are works of stunning beauty that can last for decades. They are an excellent choice for any pool. Once established, they’re easy to maintain.

How do you get stains out of Pebble Tec?

All you need to do is drop your PH level to about 6.8-7.0 and BRUSH BRUSH BRUSH. Test the water even more frequently during the process. Like I said, you probably won’t notice any improvement right away, but over the course of a few weeks, it will start to fade away.

Can you run a gas pressure washer in the rain?

In general, it is considered safe to use a gas-powered pressure washer in the rain. They are designed to handle splash backs and accidental sprays from your pressure washer. However, you must first make sure that your pressure washer is safe to use in the rain.

Can you jet wash in the rain?

If it is raining lightly, with no sign of thunder or lightning, you are fairly safe. If it is pouring, you may want to consider another day. If there are thunder and lightning, definitely put the job off.

Can you leave a power washer out in the rain?

You should not expose other pressure washers to rain at all, or risk electrocution or damage to the pressure washer. You may think that because a pressure washer has water inside of it, it must be waterproof. However, plenty of gas and electrical appliances that use water can’t stand out in the rain.

How long does muriatic acid take to work in pool?

Wait for at least 30 minutes Now it’s time to let the muriatic acid do its work. At this point, you can play it safe by running your pump for at least half an hour to stop the acid from settling on your pool floor. If you would rather keep your pump off, make sure to brush the pool floor continuously to prevent damage.

How much muriatic acid should I add to my pool?

To properly dilute acid, you should first fill up a 4-5 gallon bucket with water. This water should be clean water as opposed to pool water. The acid that you place into the water should be around 10 percent of the water in the bucket, which equates to a 1/10 ratio of acid/water.

Can salt stain a pool?

When salt is added to your pool, it can cause stains easily. The iron will cause brown stains in the saltwater pool and manganese will cause dark brown or black stains. Liquid chlorine will also cause brown stains after a period of time. With bore water, you can also expect stains.

How do I get my pool steps white again?

For an isolated stain, you can sprinkle Cal-Hypo on the steps, or pour small amounts into a 2″ PVC pipe, and slowly move the pipe over the pool steps. If you are able to lower the water, you can use bleach or Clorox granules to scrub the steps clean.

Can you swim in a pool with mustard algae?

Primarily caused by external factors, mustard algae in a swimming pool can be challenging to treat, as it’s resistant to chlorine. Left untreated, mustard algae in a swimming pool can make the water cloudy and create an environment that welcomes harmful bacteria.

How much does it cost to resurface a pool with Pebble Tec?

Resurfacing with a pebble or quartz aggregate finish (like PebbleTec or Diamond Brite can cost $3,500-$8,500 for a rough finish or about $5,000-$10,000 for a polished finish, depending on the style and color.