Caribbean Blue Knock Out Swimming Pool Algae Killer Pool & Spa Chemicals

Knock out green pool water with Caribbean Blue Knock Out Algae Killer presented by Pool Stuff Express. Blue, green, purple, and mustard algae don't stand a chance when you put Caribbean Blue Knock Out Algae Killer in the pool. Simply shake, dilute, and pour into the water, the chelated copper ions will do the work. No staining or fussing. Kills most algae breedsDoes not affect water balanceCan be used with most sanitizersFor faster results use a wall brush to brush the entire floor and walls before putting Caribbean Blue Knock Out into the water and Caribbean Blue Forever Clear Clarifier after the water has been filtered to speed up the filtration of dead algae.

• Kills stubborn algae of any type
• Unique copper blend to strengthen algae killing power
• Chelated to prevent surface staining
• Does not affect water balance of pool water
• For use with most sanitizing systems