SuperSonic sanitizes， clarifies， fights algae and won't over-stabilize pool water. It is safe for use on all pool surfaces and leaves no residue.

• Add 1 lb. per 10，000 gallons directly to the pool
• For best results， add during the evening hours
• Compatible with chlorine and salt water chlorine sanitizing systems

• Initial Start Up: 1 lb per 10，000 gallons of water
• Maintenance Dose: 9 - 18 oz per 10，000 gallons of water every week

• Pool Opening: Adjust and maintain pH in the 7.2 to 7.6 range. Follow "Shock Treatment" directions. Allow 30 minutes for the product to disperse.
• Shock Treatment: Additional shock treatments may be required to correct problems which are caused by visible algae， high bathing loads， heavy wind and rainstorms. Additional shock treatments may also be required to correct problems such as unpleasant odors and eye irritation.
• Algae Control: Follow "SHOCK TREATMENT" directions on this label. Add this product as close as possible to any algae on the sides or bottom of the pool. If necessary， repeat the treatment. To prevent possible staining or bleaching， take the following steps immediately after treatment: Thoroughly clean the pool by brushing the surface of algae growth， vacuum and cycle through the filter. For preventative algae control， use your preferred algaecide product regularly. Follow label directions on the algaecide.

• Capacity: 5 lbs
• Contains: 73% Chlorine
• Calcium Hypochlorite: 73%
• Other Ingredients: 27%

GLB 5 lb Supersonic Shock 73 Cal Hypo