Regal pH Minus
Product Overview
A proven choice for lowering pH without the hazards and fumes associated with liquid muriatic acid.
Regal pH Minus utilizes granular Sodium Bisulfate to safely reduce high pH levels in your pool water. This 6 lb pouch provides a controlled application method that is easier to handle than liquid alternatives, effectively bringing your water back into the ideal 7.2 to 7.6 range. In our experience, this dry acid is the standard specification for homeowners in hard water regions where high-alkalinity fill water causes constant pH drift and scale potential.
Benefits & What Makes It Different
Granular Sodium Bisulfate
This dry acid formula is significantly safer to store and handle than liquid muriatic acid, eliminating the risk of caustic fumes or spills.
6 lb Pouch Convenience
The pre-measured 6 lb size is ideal for precise dosing, allowing you to lower pH levels without the guesswork of heavy, bulky containers.
Protects Pool Surfaces
By maintaining a balanced pH, you prevent the formation of calcium scale on tile lines and internal plumbing components.
Product Details
Sodium Bisulfate 93.2%
1 lb per 10,000 gallons to lower pH by approximately 0.2
Compatibility
- Do not mix directly with chlorine or other pool chemicals
- Compatible with salt systems, chlorine, bromine, and biguanide pools
When To Use This
Pro Tip
Always broadcast the granules across the deep end surface while the pump is running to prevent concentrated acid from sitting on the pool floor, which can etch plaster or damage liners.
Common Questions & Instructions
How much Regal pH Minus do I need for my 10,000-gallon pool?
To lower your pH by approximately 0.2 units, you should add 1 lb of Regal pH Minus per 10,000 gallons of pool water, though you should always test your total alkalinity first as it acts as a buffer.
Will this product affect my pool's total alkalinity or stabilizer levels?
Regal pH Minus will lower both your pH and your total alkalinity simultaneously, but it does not add any cyanuric acid (stabilizer) or affect your calcium hardness levels.
How long should I wait to swim after adding Regal pH Minus?
We recommend waiting at least 1 to 2 hours with the pump running to allow the granular acid to fully dissolve and circulate before re-testing and entering the water.
Delivered today to your DFW neighborhood
Order this item by 2 PM Central on a weekday, and we'll have it on your driveway by evening. Same-day delivery is FREE to every ZIP in our DFW coverage area — no minimum — or it's free with our weekly service plan.
