Expert Verified Updated: March 2026

Borax to Raise pH from 7.0 to 7.4 Calculator

Calculate exactly how much Borax is needed to raise your pool's pH from 7.0 to the ideal 7.4. Safe and precise dosage instructions.

Quick Conclusion
To raise pool pH from a low 7.0 back to the ideal 7.4, Borax is a safe and effective choice. It raises pH with minimal impact on Total Alkalinity.
A pH of 7.0 is too acidic for swimmers' eyes and can corrode heating elements. Raising it to 7.4 restores comfort and protects your pool equipment.

Actionable Steps

1. Confirm pH is at 7.0. 2. Calculate Borax dose. 3. Sprinkle around the perimeter. 4. Wait 1-2 hours and retest. Repeat if necessary.

Pro-Tip

Borax adds Sparkle: Aside from raising pH, borates at around 30-50 ppm act as an algaestat and give the water a crystalline shimmer.

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