pH Decreaser For Pools
pH Decreaser For Pools
Sodium Bisulfate Dry Acid for Pools
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Fast-dissolving dry acid that lowers pH and alkalinity fast. Swim-ready in just 15 minutes. Helps prevent scaling, cloudy water, and equipment wear by reducing high pH and alkalinity.

- Add this product directly to the deepest end of the pool and brush any settled product from surfaces.
- Avoid adding the product near metal components or sensitive surfaces—consult a dealer if needed.
- Test pool water frequently with the circulation system running and adjust as necessary.
- Circulate for 2 hours, retest pH, and repeat if above 7.6 until the water reaches a pH of 7.2–7.6.
- Never mix different products together in the same bottle or pail.
See label for detailed instructions.

Q: What is pH Reducer used for?
A: It lowers high pH and total alkalinity levels to help prevent scaling, cloudiness, and equipment wear.
Q: How fast does it work?
A: Typically within 15 minutes, once the product has fully dissolved and circulated through your system.
Q: Can I use this in a saltwater pool?
A: Yes! It’s compatible with saltwater, chlorine, and bromine systems.
Q: What surfaces is this safe on?
A: Safe for all standard pool surfaces, including vinyl, plaster, fiberglass, and tile.
Q: Do I need to pre-mix it before adding to the pool?
A: Nope—just add it directly to the deep end of the pool. No pre-mixing required.

The price you see is the price you pay.
We don’t play pricing games.
That’s why all orders over $75 ship free—no tricks, no hidden costs.
Why is AquaDoc the Best in Pool Chemicals?
- 🌿 Paraben free & Aluminum free
- 📦 Fast Shipping
- 🇺🇸 Made in the USA
Order With Confidence
If our products don't solve your (pool or spa-related) headaches, contact us for a 100% refund. Free shipping on all orders over $75!
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100% Paraben Free
Say goodbye to parabens that can potentially be harmful to your family. All of AquaDoc's chemicals are paraben and aluminum free.
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