Expert Verified Updated: March 2026

Dry Acid (Sodium Bisulfate) Calculator

The safer alternative to muriatic acid. Calculate exact dry acid dosage to lower your pH.

Quick Conclusion
The Dry Acid (Sodium Bisulfate) Calculator provides instant dose calculations for pool maintenance, helping you maintain perfect water balance and extend equipment life.

Technical Comparison

Acid TypeSafetyCost Efficiency
Muriatic (Liquid)LowerElite
Dry AcidEliteModerate
Sulfuric AcidDangerHigh

Why Dry Acid?

It doesn't fume and is easier to store, though it adds sulfates to the water.

Actionable Steps

Lowering pH with Dry Acid

Sodium bisulfate is a granular acid that is safer to handle than liquid muriatic acid.

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Safety Warning: Never add to a skimmer. Broadcast across the surface in the deep end.

Pro-Tip

Dry acid (Sodium Bisulfate) is safer to handle than liquid muriatic acid, but it adds sulfates to the water. Excessive sulfates can damage saltwater chlorine generator cells over time.

Frequently Asked Questions

Does it expire?

Keep it dry and it will last for years.

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