How to treat: 1 quart per 20,000 gallons will reduce calcium 100-150 ppm. 1 quart per 30,000 gallons will reduce 80-100 ppm. Add the recommended dosage of Calcium Reducer by pouring around the pool perimeter. Maintain water circulation for at least 12 hours each day, during the treatment period. Backwash filter as necessary. Allow up to 3 weeks to reach final calcium hardness level.
- Effectively reduces calcium hardness in pool water.