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
Dosage:
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