Blast Out™ Shock

Blast Out Shock Fights Algae and Bacteria in Your Pool

This is the strongest start-up shock available.

Ideal for spring start-up, this powerful 65%-available chlorine zaps algae, bacteria, and organic pollutants. A quick chlorine boost at an economical price. Active ingredient: Calcium Hypochlorite. Must be pre-mixed prior to treatment to avoid bleaching vinyl liners.

Dosage: 1 lb. treats 10,000 gallons