Pool Quick Shock actively eliminates organic waste like perspiration, body oils, and cosmetics to restore crystal-clear pool water. This powerful formula effectively eradicates heavy algae growth while revitalizing your existing chlorine to keep it working longer. Directions For Use: Add QUICK SHOCK directly over water surface and in front of water outlet Maintain daily levels as directed on the label of the pool sanitizer used and as determined by test kit Put filter in filtration mode For each treatment, add one or two pouches of QUICK SHOCK according to pool size Wait 30 minutes before using the pool Compatible with all salt systems 12 x 300 grams packets Dosage: One pouch treats up to 40,000L of pool water; Two pouches treats up to 80,000L Use QUICK SHOCK weekly to keep water crystal clear Important: To prevent bleaching, pre-dissolve the required amount of Quick Shock in a plastic bucket, keeping the concentration under 1 kg per 10,000 L of pool water. Always add the chemical to the water, NEVER add water to the chemical. Pour the resulting slurry directly into the pool around the perimeter.