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BioGuard Spot Kill®

BioGuard Spot Kill®

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BioGuard Spot Kill® is a designed specifically for stubborn black algae spots.

• 99 % sodium dichloro-s-triazinetrione dihydrate
• pH~6.5
• For use in vinyl, painted, fiberglass, or color plaster surface pools
• Restores water clarity
• Fast-acting granular algae killer
• Black algae killer


Always follow label instructions, dosages are provided here to inform your purchase decisions. These dosages are not meant as a replacement for label instructions.

Light algae growth: 1 pound per 10,000 gallons

Black Algae or Heavy algae growth: 2 pounds per 10,000 gallons