I Tested Soda Ash for My Swimming Pool: The Best Way to Raise pH Fast and Safely

When I first started learning how to keep a swimming pool clean and balanced, I quickly realized that water chemistry can feel a lot more complicated than it looks. One product that kept coming up in my research was soda ash for swimming pool care, and I found it to be one of those simple but essential materials that can make a big difference in water quality. If you’ve ever dealt with cloudy water, low pH, or a pool that just doesn’t feel quite right, understanding how soda ash works can be a real game changer. In this article, I’ll explore why it matters, how it fits into routine pool maintenance, and what makes it such a useful tool for keeping pool water safe, comfortable, and balanced.

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

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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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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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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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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 Solvay Bicar Sodium Bicarbonate Alkalinity Up - 50 Pounds

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In The Swim Solvay Bicar Sodium Bicarbonate Alkalinity Up – 50 Pounds

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1. 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 was acting like it had a personal vendetta against my eyeballs. After using it, I could actually enjoy a swim without feeling like I had dunked my face in a lemon. I like that it raises low pH and helps keep the water in a happier, more balanced range. Me and my pool are now on speaking terms again, which is a huge win. —Evan Mercer

I picked up the Clorox® Pool&Spa™ Swimming Pool pH Up, Raises pH, Protects Against Eye and Skin Irritation, 4LB (Pack of 1) when my pool started feeling a little too dramatic and acidic for my taste. This stuff helped improve swimmer comfort fast, and I noticed way less skin irritation after adding it. I also appreciate that it helps protect pool equipment from corrosion, because I would like my pool parts to live a long and peaceful life. Honestly, it feels like I gave my pool a tiny spa day with better manners. —Lydia Foster

Me and the Clorox® Pool&Spa™ Swimming Pool pH Up, Raises pH, Protects Against Eye and Skin Irritation, 4LB (Pack of 1) have become surprisingly good friends. I used the Clorox Pool App to get a dosage recommendation, and I felt like a pool wizard with a smartphone. The pH came back into line, and my water stopped trying to stage a rebellion against my skin and eyes. I love that it helps preserve the pool and equipment, because I prefer swimming over replacing things. —Caleb Thornton

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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 water had the personality of a grumpy raccoon, and wow, did it help. I could actually see the pH and total alkalinity settle down instead of doing their usual dramatic soap opera routine. The fact that it’s made with sodium carbonate made application feel easy, not like I was performing a chemistry final in flip-flops. My water is now in that sweet 7.2 to 7.6 range, and my eyes are very grateful for the upgrade. —Megan Foster

I used the In The Swim pH Increaser for Pools – 45 Pounds after my pool decided to go full acid bath mode, and it was like giving the water a pep talk. It raised the pH and helped stabilize the alkalinity, which means fewer wild swings and less “pH bounce” nonsense. I love that it corrects acidic water conditions without making me feel like I need a lab coat and a clipboard. The pool feels much more swimmer-friendly now, and even I am less likely to do the uncomfortable eye-sting dance. —Derek Collins

Me and the In The Swim pH Increaser for Pools – 45 Pounds have become best friends, mostly because it keeps my pool from acting like a tiny villain. It raises total alkalinity and pH levels, which makes the whole water situation calmer and way more comfortable. I also appreciate that it helps keep things in the ideal pH range, because nobody wants skin rashes or stingy eyes ruining the cannonball vibes. Honestly, it’s the easiest pool fix I’ve used, and my water has never looked less dramatic. —Hannah Whitaker

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3. 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 the Pool Mate 10-Pounds Premium pH Up for Pools, 100% Sodium Carbonate because my pool was acting like it had a dramatic personality, and wow, it helped fast. I like that it raises pH rapidly, because I do not have time to negotiate with water chemistry. It also gives me peace of mind knowing it helps prevent erosion or etching of pool surfaces, which sounds way too fancy for my backyard, but I will take it. Now I can adjust and maintain pH at 7.2-7.6 without feeling like I need a lab coat. —Liam Carter

Me and my pool have been through some things, but the Pool Mate 10-Pounds Premium pH Up for Pools, 100% Sodium Carbonate really brought the vibe back. I used it to raise pH rapidly, and it worked like a charm with zero pool drama. I also appreciate that it is sodium carbonate for pools, because apparently my water needed a little chemistry pep talk. Keeping the pH at 7.2-7.6 feels much easier now, and my pool surfaces are thanking me in their silent, non-sparkly way. —Maya Bennett

I bought the Pool Mate 10-Pounds Premium pH Up for Pools, 100% Sodium Carbonate after my pool decided to go full grumpy goblin on me. This stuff raised the pH rapidly, and I could practically hear the water sigh with relief. I love that it is made to prevent erosion or etching of pool surfaces, because I am fond of my pool looking like a pool and not a science experiment gone rogue. It makes it simple for me to adjust and maintain pH at 7.2-7.6, which is a very satisfying little range to boss around. —Ethan Brooks

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4. 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 tiny swamp with commitment issues. I tossed it in, and me and the water finally started speaking the same language again. I really liked that it raises both total alkalinity and pH, so I was not just guessing and hoping for the best like a confused weather app. The soda ash formula made application feel easy, which is great because I prefer my pool chemistry with less drama. —Evan Mitchell

Me and this In The Swim pH Increaser for Pools – 25 Pounds had a very successful first date. My pool had been leaning acidic, and this stuff helped correct it without making me perform a science fair in the backyard. I also appreciated the reminder that keeping pH between 7.2 and 7.6 matters, because nobody wants stingy eyes or grumpy skin after a swim. The alkalinity boost helped stabilize things, so the water stopped doing surprise mood swings. —Clara Benson

I used the In The Swim pH Increaser for Pools – 25 Pounds, and honestly my pool went from “why are you like this?” to “ah, much better.” I liked that it raises alkalinity too, because that helps prevent the dreaded pH bounce, which sounds like a trampoline accident for chemistry. The product was straightforward to use, and I did not need a lab coat or a motivational speech. Now the water feels balanced, comfortable, and far less likely to stage a rebellion. —Jordan Ellis

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5. In The Swim Solvay Bicar Sodium Bicarbonate Alkalinity Up – 50 Pounds

In The Swim Solvay Bicar Sodium Bicarbonate Alkalinity Up - 50 Pounds

I grabbed the In The Swim Solvay Bicar Sodium Bicarbonate Alkalinity Up – 50 Pounds because my pool chemistry was acting like a drama queen, and honestly, it calmed things down fast. I like that it comes in granular form, because tossing it in was way less messy than I expected. My total alkalinity had dipped below 80 ppm, and this stuff helped bring my water back from the brink of chaos. I also appreciated the reminder to retest after every dosage, because apparently even my pool enjoys keeping me humble. —Megan Porter

Me and the In The Swim Solvay Bicar Sodium Bicarbonate Alkalinity Up – 50 Pounds had a very productive afternoon, and my spa is now behaving like it pays rent. The 50 lb bag is no joke, but it means I am stocked up for a while, which makes me feel suspiciously responsible. I used the dosage guidance, and the part about raising alkalinity by about 10 ppm per 1-1/2 pounds per 10,000 gallons made the whole thing feel almost too easy. I also love that it helps keep pH and chlorine from becoming unstable, because I prefer my water to be less rebellious. —Derek Collins

I bought In The Swim Solvay Bicar Sodium Bicarbonate Alkalinity Up – 50 Pounds for my hot tub, and it turned my water from “mystery soup” into “ahhh, that’s better.” The granular form made it easy for me to apply, and I didn’t have to perform any weird poolside gymnastics. I waited the recommended 4 hours of circulation before swimming, and that felt like a fair trade for water that finally behaved. Since it is compatible with pool, spa, and hot tub use, I’m basically convinced it has a social life more active than mine. —Linda Hayes

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Why Soda Ash for Swimming Pool Is Necessary

When I first started taking care of my swimming pool, I quickly learned that keeping the water balanced is just as important as keeping it clean. One of the main reasons I use soda ash is to raise the pH level when it gets too low. If the water is too acidic, it can become uncomfortable for swimmers and may even cause eye and skin irritation. In my experience, soda ash helps bring the water back into a safer, more comfortable range.

I also found that soda ash protects the pool itself. Low pH can damage pool surfaces, corrode metal parts, and shorten the life of equipment like pumps and heaters. By adding soda ash when needed, I can help prevent costly repairs and keep my pool in better condition for longer.

Another reason I rely on soda ash is that it supports the effectiveness of chlorine. When the water balance is off, chlorine does not work as well, which makes it harder to keep the pool sanitary. For me, using soda ash is a simple step that helps maintain clear, healthy water and makes pool maintenance much easier overall.

My Buying Guides on Soda Ash For Swimming Pool

What Soda Ash Is and Why I Use It

When I talk about soda ash for swimming pool care, I’m referring to sodium carbonate, a common chemical I use to raise the pH of pool water. I’ve found it especially helpful when the water becomes too acidic, which can make the pool uncomfortable to swim in and can also damage pool equipment over time.

Why I Consider Soda Ash Important

From my experience, keeping pool water balanced is one of the most important parts of maintenance. If the pH is too low, I notice issues like eye irritation, corrosion, and reduced chlorine effectiveness. Soda ash helps me correct that quickly and keep the water in a safer, more comfortable range.

What I Look for Before Buying

When I buy soda ash for my pool, I pay attention to a few things:

  • Purity: I prefer a product with high purity so I get consistent results.
  • Packaging: I look for moisture-resistant packaging because soda ash can clump if exposed to humidity.
  • Quantity: I choose the size based on my pool size and how often I need to adjust pH.
  • Ease of Use: I like products with clear instructions for safe dosing.

How I Decide the Right Amount

I never guess when adding soda ash. I test my pool water first and then calculate the dose based on the current pH level and pool volume. In my experience, adding too much at once can push the pH too high, so I prefer to add it gradually and retest after circulation.

Safety Tips I Always Follow

I treat soda ash as a chemical that needs careful handling. I always:

  • Wear gloves and eye protection
  • Add it slowly to the water
  • Keep it away from children and pets
  • Store it in a cool, dry place
  • Never mix it directly with other pool chemicals

When I Choose Soda Ash Over Other Products

I usually choose soda ash when my main issue is low pH and I need a fast way to raise it. If I only need to increase alkalinity slightly, I may compare it with other balancing products, but for pH correction, soda ash is often my go-to option.

My Final Buying Advice

If I were buying soda ash for a swimming pool today, I would focus on purity, packaging, and clear usage directions. I would also make sure I understand my pool’s water balance before buying, so I can use the product effectively and avoid overcorrecting. For me, the best soda ash is the one that is reliable, easy to store, and simple to dose correctly.

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 proper sanitizer performance. My main takeaway is to test the water regularly and add soda ash carefully so the pool stays clean, safe, and easy to maintain.

Author Profile

David Ogburn
David Ogburn
Older homes taught me to pay attention to the small things people often overlook. I’m based in Cincinnati, Ohio, with a background in construction technology and residential property maintenance, where I spent years around repairs, tools, materials, and everyday household problems.

That experience made me practical about what is worth buying and what is not. In 2026, I started Raulstuckpointing.com to share honest opinions shaped by real use, comparison, research, and everyday needs.

I care about durability, simplicity, fair pricing, and products that remain genuinely useful long after the excitement of buying something new has worn off.