GRANULATED CALC HEARING INCREMENDER To increase calcium content when it is less than 175 ppm. Dosage :: Put 1.5kg per 100m3 to increase 10ppm of hardness Carateristic: CTX-22 5 kg. Granulary Hardness Incremental Intensifying Calcium Hardness, CTX-22, is used to increase calcium content when below 175 ppm. To avoid water aggression in the pool materials, it is essential Increase calcium hardness with CTX-22 to 175PPM values ??that can produce a low hardness of water calcium.Ideal to: all types of pools. Evitates that, due to water imbalance, skin irritation and bathers eyes , corrosion of pool metal parts and excessive disinfectant consumption. Add 1.5 kg of product to increase the hardness of 100 m.3 of water by 10 ppm, with this dose indicative. The hardness of water must be between 175- 300 ppm (CO3CA) and its control will be performed by a test kit once a month. Design the necessary dose of dissolved product in water and distribute the solution to the pool surface equally.