- 1200 ml container - 1 capful (100ml) treats up to 20,000 Gal (75,000 litres) - Use when pool water is between 12 to 30 c - No more scum lines - Improves water quality and clarity - Maintains pH and alkalinity levels - Reduces pool maintenance and enhances chemical treatments HOW TO USE - pre mix one capful into a bucket of pool water and evenly distribute around pool perimeter - repeat once a week - use double dosage when opening or closing the pool for the season