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How to Clean a Salt Cell Download ArticleExplore this Article parts 1 Checking the Cell 2 Using Physical Methods to Clean the Salt Cell 3 Cleaning the Cell Chemically Other Sections Questions & Answers Related Articles References Article Summary Reviewed by Claudia & Angelo Zimmermann
Last Updated: April 20, 2025 References
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This article was reviewed by Claudia & Angelo Zimmermann. Claudia and Angelo Zimmermann are the founders of Everneat, an Eco-Friendly Cleaning Service based in New York City and in Connecticut. They are also the founders of Clean Code, a DIY 100% natural cleaning product line. There are 8 references cited in this article, which can be found at the bottom of the page. This article has been viewed 213,033 times.
A salt cell is used in a saltwater pool. It's the part of the system that allows chlorine to be produced naturally rather than added, as in a standard pool. Sometimes this cell needs to be cleaned because minerals and calcium build up on plates inside the cell. You'll need to periodically check the cell to see if it needs to be cleaned, then use physical or chemical methods to clean it.
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Part 1 Part 1 of 3:
Checking the Cell
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1 Turn the power off. Before you start messing with the cell, the power needs to be off for safety's sake. Don't try to unscrew the unit while it is still on. Most filtration systems have an easy access switch to turn the power off.
On some units, simply press the button next to "filter" on the control panel. On other units, turn it off at the on/off switch or the time clock.
In addition, flip the breaker for the control panel or turn off the control panel. Then, unplug the salt cell, as well.[1]XResearch source
2 Remove the salt cell. Once you have the power off, take the salt cell out to inspect it more closely. You'll be looking at the metal plates inside the unit. You should be able to inspect them fairly easily to see if they need cleaning.
Unscrew both sides of the salt cell to remove it. It should have large screw-in unions on both ends. The unions will be the same size as the pipe. As you unscrew, be careful, as water will leak out.[2]XResearch source
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3 Look for deposits. The cell only needs cleaning if it has mineral deposits on its filters. The mineral deposits will look white, dry, and flaky, like a tub faucet or shower head gets at times. These deposits reduce the unit's efficiency, so you need to remove them. If your filter doesn't have deposits, put it back, and check it in a month or so.
Tip the salt cell up to look inside at the metal plates. Check for mineral deposits.[3]XResearch source
4 Check the cell regularly. Most salt cells will need cleaning at least twice a year. Some may need it as often as every two months. It mostly depends on how hard your water is, as that's what causes buildups. Check on it every two months to see if it needs cleaning until you figure out how often yours will need to be cleaned.[4]XResearch source
If you have a newer salt system, the cell may not even need cleaning out, as these systems have built-in ways of keeping deposits from building up.
Watch for the signal. Some systems have an automatic monitor to remind you when to check your salt cell.
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Using Physical Methods to Clean the Salt Cell
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1 Pull out any large debris. If you notice large debris in the filter, pull it out with your hand, though only do so if it's easily reachable. Anything small should be taken care of by the hose and the chemical solution used to clean the salt cell.
2 Try a hose first. You can start cleaning the salt cell with a standard garden hose. Point it in one end of the unit, letting the water go through it and flow out the other end. This process should help remove random bits that have gotten caught in there, as well as some of the mineral deposits.[5]XResearch source
Don't get the end of the plug wet, as that part is not waterproof.
3 Scrape off the deposits. Another option for working on the deposits is to use a plastic or wooden tool. Scrape at the deposits gently to try to remove them. Don't use metal, as that will damage the filters. You may be able to remove most of the mineral deposits this way.
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Cleaning the Cell Chemically
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1 Practice safety measures. When using chemicals, protect yourself. Put on latex gloves, as well as goggles to protect your eyes. In addition, only clean the cell where there's plenty of ventilation, as the acid can produce fumes.[6]XResearch source Coveralls also wouldn't hurt. At the very least, cover your arms and legs.
2 Mix the muratic acid. You use muratic acid to clean the deposits off the filters in the salt cell. However, you must dilute it because straight muratic acid is too strong. Pour water in a clean bucket that's easy to pour from. Add muratic acid to the bucket.
Start with five parts water to one part acid.
Never add water to acid. Always add the acid to the water.
While occasional cleaning of a cell is acceptable it’s best to only do so when required. While the acid does remove any Scale it also damages the plates inside of the cell itself thus reducing the life.
3 Cap the cell. The easiest way for the solution to reach the filters is to simply pour it into the cell. To do that, screw the cell into the cleaning stand, which caps off one end. The stand goes on the end where the cord is. Stand it up on that end.[7]XResearch source
4 Pour the solution in. Using the bucket, carefully add the solution to the salt cell, making sure not to spill it on yourself. It should cover the filters inside, coming most of the way up the inside of the cell. Leave the solution to soak for 10 to 15 minutes.
5 Wait for the foaming to end. The mixture will foam up inside the cell. That is a good sign, as it means it's working on the mineral deposits. Once the mixture has stopped foaming, that usually means it's clean, though sometimes you may need to go through the process again.[8]XResearch source
For the moment, pour the solution back into the bucket.
6 Clean out the salt cell with water. Once the deposits are gone, use the garden hose again. Thoroughly rinse out the inside of the cell, as chlorine and muratic acid shouldn't mix. Once you're sure it's thoroughly cleaned out, the process is done.
7 Replace the salt cell. Put the salt cell back into position; it doesn't matter which direction it goes on most units. Screw the unions back in place. Plug the unit back into the wall, and clear the inspection light on the control panel by holding down the up arrow or pressing down the diagnostic button for three seconds.[9]XResearch source
8 Store or dispose of the excess acid. You can keep the water-acid mixture in a clean bottle, though you should get rid of it by the time it suggests on the original bottle of acid. To dispose of it, look for hazardous waste disposal collection centers in your area, as that's the best way to get rid of it.
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Question Can you just add acid to the pool water? Samantha Clark Community Answer You may have to add a quart of muriatic acid in an average size (15,000 gallons) in-ground pool if the pH level is higher than 7.8. Do not forget to check the pH level after allowing the water to circulate for an hour. For smaller above ground pools, using a cup of acid is usually a good starting point. Thanks! We're glad this was helpful.Thank you for your feedback. If wikiHow has helped you, please consider a small contribution to support us in helping more readers like you. We’re committed to providing the world with free how-to resources, and even $1 helps us in our mission. Support wikiHow Yes No Not Helpful 9 Helpful 8
Question Is muriatic acid the same as hydrochloric acid? Lina DaSilva Top Answerer Yes, muriatic acid is essentially the same as hydrochloric acid. Muriatic acid is usually a diluted version of hydrochloric acid that's often used for household or industrial purposes. It typically has impurities, making it less pure than the hydrochloric acid you might find in a laboratory setting. Thanks! We're glad this was helpful.Thank you for your feedback. If wikiHow has helped you, please consider a small contribution to support us in helping more readers like you. We’re committed to providing the world with free how-to resources, and even $1 helps us in our mission. Support wikiHow Yes No Not Helpful 0 Helpful 2
Question How often do you clean the chlorinator? Lina DaSilva Top Answerer Typically, it's recommended to check your salt cell every 3 months for any calcium buildup or debris. However, the cleaning frequency can vary depending on your pool usage, salt levels, and water hardness. Thanks! We're glad this was helpful.Thank you for your feedback. If wikiHow has helped you, please consider a small contribution to support us in helping more readers like you. We’re committed to providing the world with free how-to resources, and even $1 helps us in our mission. Support wikiHow Yes No Not Helpful 0 Helpful 3
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Reviewed by: Claudia & Angelo Zimmermann House Cleaning Professionals This article was reviewed by Claudia & Angelo Zimmermann. Claudia and Angelo Zimmermann are the founders of Everneat, an Eco-Friendly Cleaning Service based in New York City and in Connecticut. They are also the founders of Clean Code, a DIY 100% natural cleaning product line. This article has been viewed 213,033 times. 1 votes - 100% Co-authors: 7Updated: April 20, 2025 Views: 213,033 Categories: CleaningArticle SummaryX
If you need to clean the salt cell in your saltwater pool, all you need is a hose. First, make sure the power is turned off before removing the cell so you don’t electrocute yourself. Then, take the cell out of its holder and spray water at it from the hose, which should dislodge the debris and mineral deposits caught inside. If the hose fails to remove everything, try scraping away the debris with a plastic or wooden scraper. It’s a good idea to clean your cell at least twice a year, although some systems will require more regular cleaning. For tips on how to clean your salt cell chemically, keep reading!Did this summary help you?YesNo
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Alan Veitch
Sep 7, 2022
"I use the stainless steel stiffener that you find in windshield wipers. It helps with the deposits on the plates."
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Yes No Advertisement Cookies make wikiHow better. By continuing to use our site, you agree to our cookie policy. Reviewed by: Claudia & Angelo Zimmermann House Cleaning Professionals Co-authors: 7Updated: April 20, 2025 Views: 213,033100% of readers found this article helpful. 1 votes - 100% Click a star to add your vote
Alan Veitch
Sep 7, 2022
"I use the stainless steel stiffener that you find in windshield wipers. It helps with the deposits on the plates." Share yours!
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Download Article Explore this Article parts 1 Checking the Cell 2 Using Physical Methods to Clean the Salt Cell 3 Cleaning the Cell Chemically Other Sections Questions & Answers Related Articles References Article Summary Reviewed by Claudia & Angelo Zimmermann 
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Reviewed by: Claudia & Angelo Zimmermann House Cleaning Professionals This article was reviewed by Claudia & Angelo Zimmermann. Claudia and Angelo Zimmermann are the founders of Everneat, an Eco-Friendly Cleaning Service based in New York City and in Connecticut. They are also the founders of Clean Code, a DIY 100% natural cleaning product line. This article has been viewed 213,033 times. 1 votes - 100% Co-authors: 7 Updated: April 20, 2025 Views: 213,033 Categories: Cleaning Article SummaryX
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1 Turn the power off. Before you start messing with the cell, the power needs to be off for safety's sake. Don't try to unscrew the unit while it is still on. Most filtration systems have an easy access switch to turn the power off. 
2 Remove the salt cell. Once you have the power off, take the salt cell out to inspect it more closely. You'll be looking at the metal plates inside the unit. You should be able to inspect them fairly easily to see if they need cleaning. 
3 Look for deposits. The cell only needs cleaning if it has mineral deposits on its filters. The mineral deposits will look white, dry, and flaky, like a tub faucet or shower head gets at times. These deposits reduce the unit's efficiency, so you need to remove them. If your filter doesn't have deposits, put it back, and check it in a month or so. 
4 Check the cell regularly. Most salt cells will need cleaning at least twice a year. Some may need it as often as every two months. It mostly depends on how hard your water is, as that's what causes buildups. Check on it every two months to see if it needs cleaning until you figure out how often yours will need to be cleaned.[4] 
1 Pull out any large debris. If you notice large debris in the filter, pull it out with your hand, though only do so if it's easily reachable. Anything small should be taken care of by the hose and the chemical solution used to clean the salt cell. 
2 Try a hose first. You can start cleaning the salt cell with a standard garden hose. Point it in one end of the unit, letting the water go through it and flow out the other end. This process should help remove random bits that have gotten caught in there, as well as some of the mineral deposits.[5] 
3 Scrape off the deposits. Another option for working on the deposits is to use a plastic or wooden tool. Scrape at the deposits gently to try to remove them. Don't use metal, as that will damage the filters. You may be able to remove most of the mineral deposits this way. Advertisement 
1 Practice safety measures. When using chemicals, protect yourself. Put on latex gloves, as well as goggles to protect your eyes. In addition, only clean the cell where there's plenty of ventilation, as the acid can produce fumes.[6] Coveralls also wouldn't hurt. At the very least, cover your arms and legs. 
2 Mix the muratic acid. You use muratic acid to clean the deposits off the filters in the salt cell. However, you must dilute it because straight muratic acid is too strong. Pour water in a clean bucket that's easy to pour from. Add muratic acid to the bucket. 
3 Cap the cell. The easiest way for the solution to reach the filters is to simply pour it into the cell. To do that, screw the cell into the cleaning stand, which caps off one end. The stand goes on the end where the cord is. Stand it up on that end.[7] 
4 Pour the solution in. Using the bucket, carefully add the solution to the salt cell, making sure not to spill it on yourself. It should cover the filters inside, coming most of the way up the inside of the cell. Leave the solution to soak for 10 to 15 minutes. 
5 Wait for the foaming to end. The mixture will foam up inside the cell. That is a good sign, as it means it's working on the mineral deposits. Once the mixture has stopped foaming, that usually means it's clean, though sometimes you may need to go through the process again.[8] 
6 Clean out the salt cell with water. Once the deposits are gone, use the garden hose again. Thoroughly rinse out the inside of the cell, as chlorine and muratic acid shouldn't mix. Once you're sure it's thoroughly cleaned out, the process is done. 
7 Replace the salt cell. Put the salt cell back into position; it doesn't matter which direction it goes on most units. Screw the unions back in place. Plug the unit back into the wall, and clear the inspection light on the control panel by holding down the up arrow or pressing down the diagnostic button for three seconds.[9] 
8 Store or dispose of the excess acid. You can keep the water-acid mixture in a clean bottle, though you should get rid of it by the time it suggests on the original bottle of acid. To dispose of it, look for hazardous waste disposal collection centers in your area, as that's the best way to get rid of it. Advertisement 
Samantha Clark Community Answer You may have to add a quart of muriatic acid in an average size (15,000 gallons) in-ground pool if the pH level is higher than 7.8. Do not forget to check the pH level after allowing the water to circulate for an hour. For smaller above ground pools, using a cup of acid is usually a good starting point. Thanks! We're glad this was helpful. Thank you for your feedback. If wikiHow has helped you, please consider a small contribution to support us in helping more readers like you. We’re committed to providing the world with free how-to resources, and even $1 helps us in our mission. Support wikiHow Yes No Not Helpful 9 Helpful 8 
Lina DaSilva Top Answerer Yes, muriatic acid is essentially the same as hydrochloric acid. Muriatic acid is usually a diluted version of hydrochloric acid that's often used for household or industrial purposes. It typically has impurities, making it less pure than the hydrochloric acid you might find in a laboratory setting. Thanks! We're glad this was helpful. Thank you for your feedback. If wikiHow has helped you, please consider a small contribution to support us in helping more readers like you. We’re committed to providing the world with free how-to resources, and even $1 helps us in our mission. Support wikiHow Yes No Not Helpful 0 Helpful 2 