Clorox Pool and Spa XtraBlue Shock, 24 Pack

Shock Treatment 6-in-1 Shock with Blue Algae-Killing Crystals Kills and controls green, black, and mustard algae 1 pound bag treats 12,000 gallons of water Kills bacteria Treat & swim in 15 minutes** Clears cloudy water and removes swimmer contaminants* Reduces chlorine odor and eye irritation Improves filter performance Won?t impact pH Box includes 24 1-pound bags for Pool / Hot Tub / Spa Crystal clear water starts with Clorox pool shock. Shocking your pool water helps to remove contaminants that may cause cloudy water and algae. Apply a pool shock treatment weekly as part of a regular maintenance routine. Maintain a regular cleaning regimen. Skim water surface, brush walls, vacuum and empty skimmer baskets at least once per week. Test and balance your pool water weekly. Your test results will tell you if your water parameters are unbalanced. If needed, apply the appropriate products to restore balance.