Clorox Pool&Spa XtraBlue Shock, 24-pack
Enjoying your beautiful pool just got easier with the power of Clorox® Pool&Spa™ Shock XtraBlue®. While removing bacteria and swimmer contaminants*, Shock XtraBlue® with blue algae fighting crystals helps kill and prevent algae growth - including common green algae, mustard algae, and black algae - that can ruin water quality and clog your filter. Best part? The fast dissolving formula prevents surface bleaching and won't affect your water's pH, allowing you to swim 15 minutes after you treat, when chlorine levels are between 1 to 4 parts-per-million. Use Shock XtraBlue® as part of your weekly maintenance for more Marco and more Polo. Swim On!
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
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
Read entire product label and use strictly in accordance with precautionary statements and directions.
Test & balance water prior to use. Adjust pH to 7.2-7.6 and free chlorine to 1-4 ppm. Visit cloroxpool.com for free water analysis & personalized product and dosage recommendations.
Shock pool water weekly and more frequently after rain, heavy use and hot temperatures to:
Keep water clear
Prevent water quality issues
Help maintain chlorine levels
If Free Chlorine is zero OR less than Total Chlorine, shock pool water and then retest after 24 hours to ensure 1-4 ppm of Free Chlorine has been reached.
* such as body oils, sweat, lotions, and urine
** test Free Chlorine before swimming to ensure it does not exceed 4ppm