BLAST-OUT (CAL HYPO) 12X1# BAG

BLAST OUT® SHOCK STRONGEST START-UP SHOCK! Compare to Sock It, Burn Out®, Sun Burn®, Super-Chlorinator®, and Power Powder®.  This powerful 65% available chlorine zaps organic pollutants, bacteria, and algae. A quick chlorine boost at an economical price. Perfect for spring start-up! Active ingredient: Calcium Hypochlorite. Must be pre-mixed prior to treatment to avoid bleaching vinyl liners.   Dosage: 1 lb. treats 10,000 gallons.