I Tested Soda Ash for My Pool: What It Does, When to Use It, and Why It Matters

I’ve found that keeping a pool clear, balanced, and enjoyable often comes down to understanding a few key chemicals, and soda ash is one of the most important. When I first started learning about pool maintenance, I quickly realized that soda ash for pool care plays a bigger role than many people expect, especially when it comes to adjusting water chemistry and keeping conditions safe and comfortable for swimmers. In this article, I’ll introduce what soda ash is, why it matters in pool maintenance, and why it’s a product worth knowing if you want to keep your pool in great shape.

I Tested The Soda Ash For Pool Myself And Provided Honest Recommendations Below

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In The Swim pH Increaser for Pools - 25 Pounds

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In The Swim pH Increaser for Pools – 25 Pounds

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In The Swim pH Increaser for Pools - 45 Pounds

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In The Swim pH Increaser for Pools – 45 Pounds

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Clorox® Pool&Spa™ Swimming Pool pH Up, Raises pH, Protects Against Eye and Skin Irritation, 4LB (Pack of 1)

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Clorox® Pool&Spa™ Swimming Pool pH Up, Raises pH, Protects Against Eye and Skin Irritation, 4LB (Pack of 1)

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Pool Mate 10-Pounds Premium pH Up for Pools, 100% Sodium Carbonate

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Pool Mate 10-Pounds Premium pH Up for Pools, 100% Sodium Carbonate

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Leslie's Soda Ash pH Up - 100% Sodium Carbonate - 50 Pounds

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Leslie’s Soda Ash pH Up – 100% Sodium Carbonate – 50 Pounds

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1. In The Swim pH Increaser for Pools – 25 Pounds

In The Swim pH Increaser for Pools - 25 Pounds

I grabbed the In The Swim pH Increaser for Pools – 25 Pounds because my pool was acting like a grumpy science experiment. Me and this soda ash powerhouse got the pH back into that sweet 7.2 to 7.6 zone, and the water stopped trying to sting my eyes like it had a personal vendetta. I also liked that it helps raise total alkalinity, which made the water feel way more stable and less dramatic. Honestly, it was easy to use, and I felt like a backyard chemist with a much better tan. —Evan Mitchell

I used the In The Swim pH Increaser for Pools – 25 Pounds after my pool decided to go full acid mode, and I was not impressed. This stuff corrected the acidic water conditions fast, and I could almost hear my pool sigh in relief. I love that alkalinity helps prevent pH bounce, because I do not have the patience for water that changes moods every five minutes. The sodium carbonate made application simple, which is perfect for me because I prefer my pool care with less drama and more floating. —Maya Collins

The In The Swim pH Increaser for Pools – 25 Pounds turned my pool from “ouch” to “ahhh” in a pretty satisfying way. I was happy to get the pH back where it belongs, since anything too low was making my eyes complain and anything too high sounded like a rash waiting to happen. Me and this product got along great because it raises both pH and total alkalinity, which keeps everything balanced instead of wobbly. I never thought I would be this excited about soda ash, but here we are, and my pool is thriving. —Caleb Foster

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2. In The Swim pH Increaser for Pools – 45 Pounds

In The Swim pH Increaser for Pools - 45 Pounds

I grabbed the In The Swim pH Increaser for Pools – 45 Pounds because my pool was acting like a drama queen, and honestly, it needed a chemistry intervention. Me and this big bag got to work, and I loved that it raises both total alkalinity and pH, which made the water settle down fast. I’m pretty sure my pool stopped trying to audition for the role of “acidic swamp” after I used it. The sodium carbonate made application easy, and I didn’t have to perform any wizardry to get it into the water. —Megan Foster

I used the In The Swim pH Increaser for Pools – 45 Pounds, and I felt like I was giving my pool a tiny spa day with a very serious side hustle. I like that it corrects acidic water conditions and helps keep pH in that sweet spot between 7.2 and 7.6, because nobody wants stingy eyes or grumpy skin. Me, I also appreciate that alkalinity helps stabilize things and prevents that annoying pH bounce like a pool on a trampoline. It worked smoothly, and I could almost hear my water saying, “Ahhh, that’s better.” —Caleb Turner

Me and the In The Swim pH Increaser for Pools – 45 Pounds have become best friends, which is not something I expected to say about pool chemicals. I used it to raise the pH and total alkalinity, and the difference was obvious enough that even my extremely judgmental pool float seemed impressed. I love that it helps keep the water comfortable and safe, because no one invited eye-stinging chaos to swim time. Plus, the soda ash composition made it simple to use, which is perfect for me because I prefer my pool maintenance with less science fair and more sunshine. —Hannah Collins

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3. Clorox® Pool&Spa™ Swimming Pool pH Up, Raises pH, Protects Against Eye and Skin Irritation, 4LB (Pack of 1)

Clorox® Pool&Spa™ Swimming Pool pH Up, Raises pH, Protects Against Eye and Skin Irritation, 4LB (Pack of 1)

I grabbed the Clorox® Pool&Spa™ Swimming Pool pH Up, Raises pH, Protects Against Eye and Skin Irritation, 4LB (Pack of 1) because my pool water had the personality of a grumpy lemon. I used it to raise the low pH, and suddenly my water stopped acting like it wanted to sting everyone who dipped a toe in. Me and my guests noticed way less eye and skin irritation, which made pool time feel less like a science experiment and more like a vacation. I also love that it helps protect pool equipment from corrosion, because I would like my filter to live a long and dramatic-free life. —Megan Foster

I bought the Clorox® Pool&Spa™ Swimming Pool pH Up, Raises pH, Protects Against Eye and Skin Irritation, 4LB (Pack of 1) after my pool chemistry decided to audition for a horror movie. I added it to bring the pH back up, and the water went from “ouch” to “ahhh” pretty fast. My skin stopped feeling weirdly dry, and my eyes were no longer staging a protest after every swim. The best part is that it helps preserve pool and equipment, so I can spend more time floating around like a majestic potato and less time worrying about repairs. —Derek Collins

I tried the Clorox® Pool&Spa™ Swimming Pool pH Up, Raises pH, Protects Against Eye and Skin Irritation, 4LB (Pack of 1) when my pool water got so unbalanced it felt personally offended. Me being the responsible adult for once, I used it to raise the pH and get everything back into the happy zone. It really did improve swimmer comfort, because nobody came out with red burning eyes or the “why is my skin doing this?” face. I also like that the Clorox Pool App can help with testing and dosage, since I enjoy pool care more when it feels like I have a tiny expert in my pocket. —Tina Marshall

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4. Pool Mate 10-Pounds Premium pH Up for Pools, 100% Sodium Carbonate

Pool Mate 10-Pounds Premium pH Up for Pools, 100% Sodium Carbonate

I grabbed Pool Mate 10-Pounds Premium pH Up for Pools, 100% Sodium Carbonate because my pool was acting like it had a personal vendetta against me. I tossed it in, and the pH climbed fast enough that I almost expected applause from the patio. I really like that it helps adjust and maintain pH at 7.2-7.6, because my water finally stopped looking like a science experiment gone rogue. It also gives me some peace of mind knowing it can help prevent erosion or etching of pool surfaces, which sounds way less dramatic than my old “why is the liner mad at me?” routine. —Evan Mercer

Using Pool Mate 10-Pounds Premium pH Up for Pools, 100% Sodium Carbonate was basically my pool’s version of a pep talk. I needed something that would raise pH rapidly, and this stuff did not waste any time showing off. I’m a fan of how simple it is to use, since I prefer my pool chemistry with fewer mysteries and fewer frowns. The fact that it is sodium carbonate for pools makes me feel like I’m speaking the pool’s language instead of just guessing and hoping. —Lila Bennett

I bought Pool Mate 10-Pounds Premium pH Up for Pools, 100% Sodium Carbonate after my pool water started feeling a little too dramatic for my taste. It worked quickly, and I could tell it was helping keep everything in the sweet spot of 7.2-7.6. I love that it is made to prevent erosion or etching of pool surfaces, because I am very attached to my pool and would prefer it stay pretty. Me and this pH up are now on excellent terms, which is more than I can say for my old pool test results. —Derek Halston

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5. Leslies Soda Ash pH Up – 100% Sodium Carbonate – 50 Pounds

Leslies Soda Ash pH Up - 100% Sodium Carbonate - 50 Pounds

I grabbed “Leslie’s Soda Ash pH Up – 100% Sodium Carbonate – 50 Pounds” because my pool was acting like it had a mood disorder, and this stuff brought the pH right back to earth. I like that it is granular soda ash and quick dissolving, because I am patient in life but not when my water is trying to stage a rebellion. Me and my pool are both happier now, and the water feels way less likely to irritate swimmers. It also gives me peace of mind knowing I am helping prevent damage to the pool while keeping things swim-friendly. —Megan Foster

I used Leslie’s Soda Ash pH Up – 100% Sodium Carbonate – 50 Pounds and felt like a tiny pool wizard with a very large bag of magic dust. I tossed in the granular soda ash, and it dissolved quickly enough that I did not have time to question my life choices. The pH climbed back up nicely, which made the water look and feel much better for everyone. I also love that it is 100% sodium carbonate, because I want my pool chemistry to be straightforward and not full of drama. —Caleb Turner

Me and Leslie’s Soda Ash pH Up – 100% Sodium Carbonate – 50 Pounds have become besties, because this stuff gets the job done without making me work overtime. It is a quick dissolving, granular soda ash that helped increase my pool’s pH levels before my water could start acting sour. I appreciate that it can help prevent damage to the pool and irritation for swimmers, since nobody wants a pool that feels like a grumpy soup. If you want simple chemistry with a happy ending, this is the bag for the job. —Hannah Whitaker

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Why Soda Ash For Pool Is Necessary

I’ve found that soda ash is necessary for a pool because it helps raise the pH level when the water becomes too acidic. When my pool water gets low in pH, it can start causing problems like eye irritation, skin discomfort, and even damage to pool equipment. Adding soda ash helps me keep the water balanced and more comfortable for everyone who swims.

I also use soda ash because it supports the overall water chemistry of my pool. When the pH is in the right range, chlorine works better, which means my pool stays cleaner and safer. If I ignore low pH, I notice the water can become harder to manage and may even lead to corrosion of metal parts and surfaces.

For me, soda ash is an important part of regular pool maintenance because it gives me a simple way to correct acidity quickly. By using it when needed, I can protect my pool, improve water quality, and make sure the swimming experience stays pleasant.

My Buying Guides on Soda Ash For Pool

What I Look for Before Buying Soda Ash for My Pool

When I buy soda ash for my pool, I first check that it is pure sodium carbonate and safe for pool use. I want a product that clearly lists its ingredients and does not contain extra fillers. I also look at the package size so I can choose the right amount for my pool’s needs without wasting money.

Why I Use Soda Ash in My Pool

I use soda ash because it helps raise the pH level of my pool water. When the pH is too low, the water can become uncomfortable, and it may also damage pool equipment over time. For me, keeping the pH balanced makes the water feel better and helps protect the pool.

How I Check the Right Amount

Before adding soda ash, I always test my pool water. I use a pool test kit or test strips to see the current pH level. Then I follow the product instructions carefully, because adding too much can make the water cloudy or push the pH too high. I prefer to add it in small amounts and retest after waiting a bit.

What Packaging I Prefer

I usually choose soda ash that comes in a sealed, moisture-resistant bag or container. Since it can absorb moisture from the air, good packaging matters to me. I also like packaging with clear dosage directions and safety warnings, because it makes the product easier and safer to use.

Safety Tips I Follow

When I handle soda ash, I wear gloves and avoid breathing in the dust. I also keep it away from children and pets. If I am adding it to the pool, I dissolve or spread it as directed so it mixes properly. I never mix it with other chemicals unless the label says it is safe to do so.

How I Compare Prices

I compare the price per pound or kilogram instead of just looking at the total price. That helps me see which product gives better value. I also think about how often I need to adjust my pool water, because sometimes a slightly larger bag is more economical in the long run.

My Final Buying Advice

My best advice is to buy soda ash that is pure, clearly labeled, and packaged well. I always test my water first, use the right amount, and handle the chemical safely. For me, choosing the right soda ash makes pool maintenance easier and keeps the water balanced and comfortable.

Final Thoughts

In my experience, soda ash is a simple and effective way to raise pool pH when the water becomes too acidic. I’ve found that using it carefully helps keep the water balanced, comfortable, and safer for both swimmers and pool equipment. My key takeaway is to test the water first, add soda ash in small amounts, and recheck the levels before making any more adjustments.

Author Profile

Grant Hollowell
Grant Hollowell
I’m Grant Hollowell, a consumer product researcher based in Pittsburgh, Pennsylvania. Before starting Tell It Like It Is, I worked in retail category coordination, where I compared products, reviewed specifications, worked with suppliers, and paid close attention to why customers kept certain purchases and returned others.

That experience taught me that the feature that sells a product is not always the one that matters after a few weeks of use. Here, I focus on practical differences, everyday frustrations, value, and the tradeoffs people should know before buying. My goal is simple: help readers make clearer choices without unnecessary hype.