BioGuard Winter Arctic Blue Algae Protector prevents the growth of all types of pool algae and aids in maintaining pool water clarity during the winter when the pool is not in use. Arctic Blue Algae Protector is formulated for use in chlorinated or brominated sanitized swimming pools of all surface and filter types.
16 fl oz per 12,000 gallons of water.
Prior to application:
Test your pool water and follow directions to properly balance your water for conditions in your area. If metals testing indicate a need to use a stain and scale inhibitor, apply that product per label directions. Allow the pool to circulate at least 1 hour before adding other products.
Add the appropriate amount of winter shock according to label directions of the product. Allow to circulate 2-4 hours. Then pour Arctic Blue Algae Protector into the pool around the edges with the pool circulation system operation. Circulate pool water for 1 hour. Then, clean filter and pool walls at water line.
In areas with severe freezing, drain pool equipment and plumbing lines or use an antifreeze recommended for swimming pool plumbing and equipment.