Aquaspa Calcium Hardness Enhancer 500g – Chlorine Free Spa Chemical

AquaSpa Calcium Hardness Enhancer raises calcium hardness in spa and hot tub water using calcium chloride. In the AquaSpa system, calcium hardness is an important part of overall water balance and helps support more stable conditions in the water.

When calcium hardness is too low, the water can become more aggressive and may contribute to equipment corrosion, etching of concrete and grouted surfaces, and less settled overall balance. AquaSpa Calcium Hardness Enhancer is used to restore the calcium level so the water remains better balanced and more suitable for ongoing AquaSpa care.

How to Use

1. Test the spa water before dosing.
2. Calculate the correct spa volume.
3. Ensure the filtration pump is running.
4. Add AquaSpa Calcium Hardness Enhancer to the spa water at the required dose.
5. Leave the cover off for at least 30 minutes after dosing.
6. Retest the water before making further adjustments.

Dosage & Coverage

• Dosage: To raise calcium hardness by 10ppm, add 10g per 1,000 litres