Bioguard Back Up 2 Algaecide for Pools
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The #1 swimming pool algaecide, Bioguard Back Up Algaecide for Pools has been in pools for years. This highly formulated algaecide fights numerous types of algae and prevents attachment to your pool walls and floors. The UV ray protection keeps this algaecide from leaving with the sun's rays and keep it in the pool working to keep the water clean. The powerful surfactant also known as a wetting agent gets in the small cracks, crevices, and hard to reach places to prevent algae blooming in "dead" areas of the pool such as deep ends, behind ladders, and on steps. Use as a maintenance chemical weekly, an algae killer, or as a start up and closing chemical. See the label for dosages on all uses.
Dosage: 1 fl oz per 5,000 gallons of water per week
Ingredients-Alkyl[50% C14, 40% C12, 10% C16] Dimethyl Benzyl Ammonium Chloride: 50%, Other Ingredients: 60%