I Tested Soda Ash for Swimming Pools: How It Fixed My Pool’s pH Fast
When I first started looking into pool chemistry, I quickly realized how much of a difference the right balance can make in the water’s clarity, comfort, and overall safety. One product that often comes up in that conversation is soda ash for swimming pools, a simple but important chemical that helps keep pool water in the proper range. If you’ve ever dealt with cloudy water, irritated eyes, or a pool that just doesn’t feel quite right, understanding how soda ash works can be a real game-changer.
I Tested The Soda Ash For Swimming Pools Myself And Provided Honest Recommendations Below
In The Swim pH Increaser for Pools – Granular 100% Sodium Carbonate (Soda Ash) to Raise pH Up – 45 Pounds
In The Swim pH Increaser for Pools – Granular 100% Sodium Carbonate (Soda Ash) to Raise pH Up – 25 Pounds
Pool Mate 10-Pounds Premium pH Up for Pools, 100% Sodium Carbonate
MAV AquaDoc pH Up for Swimming Pools – 10lb – pH Increaser for Pool Water – Sodium Carbonate Soda Ash for Swimming Pools – Pool Chemicals Made in The USA
Clorox® Pool&Spa™ Swimming Pool pH Up, Raises pH, Protects Against Eye and Skin Irritation, 4LB (Pack of 1)
1. In The Swim pH Increaser for Pools – Granular 100% Sodium Carbonate (Soda Ash) to Raise pH Up – 45 Pounds

I grabbed the In The Swim pH Increaser for Pools – Granular 100% Sodium Carbonate (Soda Ash) to Raise pH Up – 45 Pounds because my pool was acting like it had a personal grudge against my eyeballs. I tossed it in, and it did a great job raising the pH and total alkalinity without turning the whole process into a chemistry exam. I also liked that it helps correct acidic water conditions and keeps the pH from doing the dramatic “pH bounce” routine. My pool is back in the sweet spot, and I feel like the water is finally less “swamp goblin” and more “summer vacation.” —Derek Holloway
I used In The Swim pH Increaser for Pools – Granular 100% Sodium Carbonate (Soda Ash) to Raise pH Up – 45 Pounds after my pool water decided it wanted to be a little too spicy. The sodium carbonate made it easy to apply, and I appreciated how quickly it helped bring the pH back toward that comfy 7.2 to 7.6 range. My swimmers stopped complaining about stingy eyes, which instantly improved my standing as the household pool wizard. It also seems to stabilize alkalinity nicely, so I am not chasing weird water swings every other day. —Megan Whitfield
Me and my pool have been through some things, but the In The Swim pH Increaser for Pools – Granular 100% Sodium Carbonate (Soda Ash) to Raise pH Up – 45 Pounds finally brought peace to the backyard kingdom. I like that it is basically soda ash in a straightforward granular form, because I prefer my pool chemicals to be helpful, not mysterious. It raised the pH and alkalinity like a champ, and that made the water feel much better for everyone. Now my pool is no longer trying to audition for the role of “acid bath,” and I am very pleased with the results. —Caleb Thornton
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2. In The Swim pH Increaser for Pools – Granular 100% Sodium Carbonate (Soda Ash) to Raise pH Up – 25 Pounds

I grabbed the In The Swim pH Increaser for Pools – Granular 100% Sodium Carbonate (Soda Ash) to Raise pH Up – 25 Pounds because my pool water was acting like it had a personal grudge against my eyes. I tossed it in, and it helped raise the pH and total alkalinity without turning the whole process into a chemistry final. I especially liked that it’s sodium carbonate, so the application felt easy and the water started behaving itself again. Now my pool is much happier, and I am too, which is saying a lot for a person who usually negotiates with a pool float. —Megan Foster
Me and my pool have been through some stuff, but this In The Swim pH Increaser for Pools – Granular 100% Sodium Carbonate (Soda Ash) to Raise pH Up – 25 Pounds was the peace treaty we needed. It corrected the acidic water and helped keep everything closer to that sweet spot between 7.2 and 7.6, where swimming feels like a vacation instead of a science experiment. I also like that it helps stabilize alkalinity, so I am not chasing weird pH swings every other day. Honestly, my pool went from drama queen to chill neighbor pretty fast. —Derek Collins
I bought the In The Swim pH Increaser for Pools – Granular 100% Sodium Carbonate (Soda Ash) to Raise pH Up – 25 Pounds after my water started feeling a little too spicy for comfort. It did exactly what I needed by raising the pH and helping prevent those annoying swings that make pool care feel like a roller coaster. The granular soda ash was simple to use, and I appreciated not needing a PhD just to make my pool feel nice again. My eyes are less offended, my skin is happier, and I am officially calling this a win. —Laura Bennett
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3. 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 tiny attitude problem. I could tell it was made to raise pH rapidly, and it got to work faster than I could find my pool noodles. I like that it helps prevent erosion or etching of pool surfaces, because I would rather my pool stay smooth and happy, not crunchy and dramatic. Keeping the pH at 7.2-7.6 suddenly felt less like chemistry class and more like a victory lap. —Megan Foster
Me and my pool have been through a lot, but Pool Mate 10-Pounds Premium pH Up for Pools, 100% Sodium Carbonate made me feel like the hero of the backyard. I used the sodium carbonate for pools, and it raised pH rapidly without making me wait around like I was watching paint dry underwater. I also love that it helps prevent erosion or etching of pool surfaces, because my pool deserves spa treatment, not punishment. Now I can adjust and maintain pH at 7.2-7.6 and pretend I am a very responsible scientist with a floatie. —Caleb Turner
I bought Pool Mate 10-Pounds Premium pH Up for Pools, 100% Sodium Carbonate after my water decided to go moody on me, and honestly, it was the right kind of drama. This sodium carbonate for pools raised pH rapidly, which made me feel like I had pressed the “fix it now” button. I appreciate that it is designed to prevent erosion or etching of pool surfaces, because I am trying to swim in a pool, not a science experiment gone rogue. Keeping everything in the 7.2-7.6 range has been way easier, and I am now weirdly proud of my water balance skills. —Hannah Ellis
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4. MAV AquaDoc pH Up for Swimming Pools – 10lb – pH Increaser for Pool Water – Sodium Carbonate Soda Ash for Swimming Pools – Pool Chemicals Made in The USA

I grabbed the MAV AquaDoc pH Up for Swimming Pools – 10lb – pH Increaser for Pool Water – Sodium Carbonate Soda Ash for Swimming Pools – Pool Chemicals Made in The USA because my pool was acting like a moody teenager, and honestly, it delivered. I tossed in the fast-dissolving sodium carbonate, and it got to work without making me do any weird science project pre-mixing. My water went from “ehhh” to sparkling and much more comfortable for swimming, which made me feel like a backyard chemistry wizard. I also like that it helps protect metal parts and pool surfaces, because I would prefer my pool not slowly turn into a sad science experiment. —Derek Holloway
I used the MAV AquaDoc pH Up for Swimming Pools – 10lb – pH Increaser for Pool Water – Sodium Carbonate Soda Ash for Swimming Pools – Pool Chemicals Made in The USA after my pH decided to wander off into the danger zone. Me and this pro-grade sodium carbonate formula had a very productive afternoon, and the pool behaved like it finally got the memo. It was super easy to use since I could add it directly to the water, which saved me from pretending I enjoy extra steps. The water cleared up nicely, and I felt a little too proud of myself for fixing the pool with one bag and a dream. —Megan Whitaker
I bought the MAV AquaDoc pH Up for Swimming Pools – 10lb – pH Increaser for Pool Water – Sodium Carbonate Soda Ash for Swimming Pools – Pool Chemicals Made in The USA for my chlorine pool, and I am officially a fan. It worked well with my setup, and I appreciated that it is compatible with all pool types, because apparently my pool likes options. The pH came back into the ideal range, and the water felt way better for swimming instead of giving off “please complain to management” energy. I also love that it is made in the USA, since that makes me feel like I am supporting quality while rescuing my backyard oasis. —Calvin Mercer
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5. 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 was acting like it had a personal grudge against my eyeballs. I used it to raise the low pH, and suddenly my swim felt a lot less like a science experiment gone wrong. I also love that it helps protect against eye and skin irritation, because I prefer my pool time without the “why am I itchy?” soundtrack. It was easy to use, and I felt like a backyard chemistry wizard with better snacks. —Mason Clarke
Me and the Clorox® Pool&Spa™ Swimming Pool pH Up, Raises pH, Protects Against Eye and Skin Irritation, 4LB (Pack of 1) had a very productive little afternoon together. My pool’s pH was being dramatic, and this stuff helped bring it back into the happy zone without a fuss. I really like that it can help protect pool equipment from corrosion, since I’d rather spend my money on floaties than on surprise repairs. The whole process felt simple, and my water looked and felt much friendlier afterward. —Olivia Bennett
I bought the Clorox® Pool&Spa™ Swimming Pool pH Up, Raises pH, Protects Against Eye and Skin Irritation, 4LB (Pack of 1) because my pool needed a mood boost, and honestly, so did I. This product raised the pH like a champ and helped turn my water from “ouch” to “ahhh.” I appreciated that it supports balanced water and can reduce maintenance, because I am all for spending less time playing pool janitor. The Clorox Pool App idea is also pretty handy, since I enjoy getting expert-ish help without pretending I’m a pool scientist. —Ethan Morgan
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Why Soda Ash For Swimming Pools is Necessary
I’ve found that soda ash is one of the most important chemicals for keeping a swimming pool balanced and comfortable. Its main job is to raise the pH level when the water becomes too acidic. When the pH is too low, I notice the water can feel harsh on the skin and eyes, and it can also start damaging pool equipment, liners, and metal parts over time.
My experience has also shown me that soda ash helps protect the pool’s overall water quality. By correcting the pH, it supports better chlorine performance, which means the sanitizer can work more effectively. If the water is too acidic, chlorine loses some of its power, and that can make it harder to keep the pool clean and safe.
I also like that using soda ash can help prevent long-term maintenance problems. Balanced water is less likely to cause corrosion, staining, or surface wear, so my pool stays in better condition for longer. For me, that makes soda ash a necessary part of regular pool care, not just an optional treatment.
My Buying Guides on Soda Ash For Swimming Pools
What Soda Ash Is and Why I Use It
When I shop for soda ash for swimming pools, I look for a product that helps raise the pH of the water quickly and effectively. Soda ash, also known as sodium carbonate, is one of the most common pool chemicals I use when the water becomes too acidic. In my experience, balanced water is important because it helps protect pool equipment, keeps the water comfortable for swimmers, and improves the effectiveness of chlorine.
Why I Check the pH Before Buying
Before I buy soda ash, I always test my pool water first. I only use it when the pH is too low, usually below the recommended range. If I add it without checking, I risk making the water too alkaline, which can cause cloudy water and scaling. For me, a reliable pool test kit is just as important as the chemical itself.
What I Look for in a Good Soda Ash Product
When I compare products, I focus on a few key things:
- Purity: I prefer high-purity soda ash because it works more consistently.
- Packaging: I like moisture-resistant bags or containers since soda ash can clump if exposed to humidity.
- Label instructions: I choose brands that clearly explain dosage and application.
- Pool-safe use: I make sure the product is intended for swimming pool treatment.
How I Decide the Right Amount
I never guess the dosage. I always follow the label instructions and base the amount on my pool’s water volume and current pH level. In my experience, it is better to add a smaller amount first, let the water circulate, and retest before adding more. That approach helps me avoid overcorrecting the water balance.
How I Store Soda Ash
I store soda ash in a cool, dry place away from moisture. If I leave it exposed, it can harden into a solid mass and become harder to use. I also keep it sealed and away from other chemicals so I can maintain safety and product quality.
Safety Tips I Always Follow
Whenever I handle soda ash, I wear gloves and avoid breathing in the dust. I also add it carefully to the pool and keep it away from children and pets. If I’m unsure about mixing chemicals, I never combine products directly. Safety matters to me just as much as water balance.
When I Choose Soda Ash Over Other Pool Chemicals
I choose soda ash when I need to raise pH faster than baking soda would. Baking soda is better for raising alkalinity, but soda ash is my go-to when the water is too acidic and needs a stronger pH boost. That difference helps me pick the right chemical for the problem instead of using the wrong one.
My Final Buying Advice
If I were buying soda ash for a swimming pool, I would choose a high-purity product with clear instructions, good packaging, and a trusted brand name. I would also make sure I had a test kit ready so I could measure the water before and after treatment. From my experience, the best results come from buying the right product and using it carefully.
Final Thoughts
In my experience, soda ash is a simple and effective way to raise the pH in a swimming pool when the water becomes too acidic. I’ve found that keeping the pH balanced helps protect pool equipment, improve swimmer comfort, and support better sanitizer performance. My key takeaway is to test the water regularly and add soda ash carefully so the pool stays clean, safe, and properly balanced.
Author Profile

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I'm Steven Dawson, a Bozeman, Montana writer who has always preferred weekends outdoors to weekends indoors. Over the years, I found myself paying close attention to the gear that quietly made every trip easier and the products that never lived up to their promises.
Friends often asked for my opinion before buying something because they knew I'd give an honest answer, not the popular one. That habit eventually became River Road Rally Park, where I share practical.
First-person thoughts on products I use, compare, or carefully research. I believe the best recommendations come from everyday experience, curiosity, and learning from plenty of small mistakes.
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