Melpool CA+ increases the calcium hardness of pool water. Correct calcium hardness is important for maintaining a good water balance. It ensures that chlorine can bond and sensors can take measurements. Adding 144 grams of CA+ increases the calcium hardness of 10 m3 of water by 10 ppm (mg/l). Do not add more than 750 grams of CA+ per 10 m3 of water during treatment..
