Hardness Increaser 4KG
Crystal Waters Hardness Increaser is used to raise the Calcium Hardness level in your swim spa water. This can be known as Calcium, or Total Hardness. Water low on calcium can draw it out of other metals in your swim spa, corroding the equipment, and provide an environment favourable to algal growth.
Dosage: To raise Calcium Hardness by 10ppm, add 10g per 1,000L.
Recommended Calcium level: 80ppm-140ppm
Active constituent: Calcium Chloride
Available sizes: 500g (Calcium Enhancer), 4kg