Best Products to Increase Pool pH and Restore Water Balance
The right pH increaser depends on your water test results, pool size, and preferred package size. Clorox Pool&Spa pH Up is best for routine residential pool care, Pool Mate is a larger sodium-carbonate option, and In The Swim offers a bulk-size choice that also raises alkalinity. BioGuard is another pool-specific option. AquaDoc is formulated for hot tubs, not swimming pools, so choose it only for spa water.
| Product | Best For | Key Distinction |
|---|---|---|
| Clorox Pool&Spa pH Up | Everyday pool maintenance | Four-pound package |
| Pool Mate pH Up | Buyers wanting a 100% sodium carbonate product | Ten-pound package |
| In The Swim pH Increaser | Bulk pool treatment | Twenty-five-pound package; raises alkalinity, too |
| AquaDoc Spa pH Increaser | Hot tub and spa owners | Liquid sodium carbonate in a two-pack |
| BioGuard Balance Pak 200 | Pool owners focused on equipment and swimmer comfort | Six-pound package |
Clorox Pool&Spa Swimming Pool pH Up

This four-pound pH increaser is formulated to raise low pool pH. The product description says balanced pH can help reduce irritation associated with acidic water and help protect pool equipment from corrosion.
Best for: Pool owners looking for a familiar, pool-specific product in a moderate package size. It was selected because its stated purpose directly matches raising swimming pool pH, and its listed benefits address swimmer comfort and equipment care.
Keep in mind: The supplied information does not give a dosage chart. Test the water and follow the package directions for your pool volume rather than estimating the amount.
Pool Mate Premium pH Up

Pool Mate’s ten-pound product is listed as 100% sodium carbonate. The features say it raises pool pH rapidly and helps prevent erosion or etching of pool surfaces associated with low-pH conditions.
Best for: Pool owners who want a larger supply of granular sodium carbonate for ongoing maintenance. It was selected for its clearly stated ingredient and direct pool pH-raising purpose.
Keep in mind: A larger package may be more than needed for a small pool or an occasional adjustment. Base treatment amounts on a current water test and the label instructions.
In The Swim pH Increaser

This 25-pound granular product is described as 100% sodium carbonate, also known as soda ash. Its listed features say it raises both pH and total alkalinity. The product description notes that alkalinity helps stabilize pH and reduce sudden changes, sometimes called pH bounce.
Best for: Pool owners who need a bulk-size pH increaser and have test results showing that alkalinity needs attention as well. It was selected for its pool-specific formulation and dual pH-and-alkalinity role.
Keep in mind: Because it can affect both measurements, retest after treatment. Avoid choosing it solely to raise pH if your alkalinity is already higher than the target recommended for your pool.
AquaDoc Spa pH Increaser

This two-pack of 32-ounce liquid pH increaser is formulated for hot tub water, not swimming pools. Its listed features identify sodium carbonate as the active formulation and state that it helps raise spa pH toward a recommended range of 7.2 to 7.8. The product description also connects balanced spa water with comfort and water quality.
Best for: Hot tub owners who want a liquid product for spa-water adjustments. It was included because it addresses pH increase, but its stated use is specifically spa and hot tub care.
Keep in mind: Do not assume a spa product is suitable for a swimming pool. Follow the label’s application directions for the intended water volume and use.
BioGuard Balance Pak 200 pH Increaser

BioGuard Balance Pak 200 is a six-pound pool pH increaser. Its listed benefits include raising pH and helping guard against corrosion, plaster etching, and liner wrinkling associated with low pH. The product description also identifies swimmer comfort and balanced pH as relevant to some algaecides’ performance.
Best for: Pool owners comparing products that explicitly address equipment, pool surfaces, and comfort. It was selected because it is formulated for pools and describes several consequences of acidic water.
Keep in mind: The listing does not specify dosing amounts. Check the label and test water before adding the product.
Buying Guide: How To Choose A Pool pH Increaser
What should you test before raising pH?
Test pool water before adding a chemical. A pH increaser is intended for water with pH below the range you are targeting; adding it without testing can push pH too high. Check total alkalinity as well, especially when considering a product that raises both pH and alkalinity. Use a reliable test kit or test strips according to their instructions.
Should you choose granular or liquid pH increaser?
The pool products listed here are granular, while AquaDoc is a liquid product formulated for spas. Choose a form designed for your water type and follow its label for application and circulation. Do not use the spa product as a pool treatment unless its label specifically permits that use.
How much product should you buy?
Match package size to pool volume and how often testing shows a need for adjustment. A smaller package can suit occasional residential maintenance; larger packages may be more practical when regular use is expected. Do not apply a whole package simply because it is available. Calculate the dose from the product directions and your pool’s measured volume.
What safety steps matter?
Read and follow the label, including handling, storage, and application instructions. Keep pool chemicals in their original containers and away from children. Do not mix chemicals together, and add products only as directed. Retest the water after treatment before making another adjustment.
Frequently Asked Questions
What does pH increaser do in a pool?
Pool pH increaser raises water pH when testing shows it is too low. Products containing sodium carbonate are commonly sold for this purpose; some also raise total alkalinity.
Can low pool pH irritate swimmers?
Low pH can contribute to eye and skin discomfort. It can also create acidic conditions that may affect pool equipment and surfaces, so test and correct water balance as directed.
Can I use baking soda instead of pool pH increaser?
These products should not be treated as interchangeable. Baking soda is commonly used to raise alkalinity, while sodium carbonate products are sold to raise pH and may also affect alkalinity. Test both readings and use a product suited to the specific adjustment.
How soon should I retest after adding pH increaser?
Follow the product label for circulation and retesting instructions. Retest before adding more so you can confirm the change and avoid raising pH beyond the target.
Is AquaDoc Spa pH Increaser suitable for a swimming pool?
The supplied product information describes AquaDoc as a hot tub and spa chemical. Choose a product labeled for swimming pools unless AquaDoc’s own instructions explicitly authorize pool use.