HASA Algi Control Concentrate | 32oz | 72121

HASA Algi-Control Concentrate 72121 is a 32oz potent algaecide formulated to combat and prevent the growth of yellow and green algae in swimming pools. This concentrated solution can be added directly to the pool water or through the circulation system, with optimal results achieved by targeting areas most affected by algae and around the pool's perimeter. It is compatible with most common pool maintenance chemicals; however, it should not be mixed directly with high concentrations of chlorine or other oxidizers. Highlights Instructions Initial Application: Thoroughly clean filter cartridges or backwash D.E. filter. Vacuum algae debris and thoroughly brush the pool. Add 26 ounces of Algi-Control Concentrate for every 50,000 gallons of water. Filter for 5-6 hours. Vacuum pool after 24 hours to remove dead algae. If algae is still visible, repeat steps 3 through 5 until pool is free of visible algae. Once algae are under control, clean the filter and return to normal operation. Maintenance Application: Add 6.5 ounces of Algi-Control Concentrate in 50,000 gallons of water every 3-5 days or as needed. Booster Application: Add 6.5 ounces of Algi-Control Concentrate for every 50,000 gallons following heavy or prolonged rainfall or when there is a heavy bathing load. Vacation Treatment: Add 4.8oz. of Algi-Control Concentrate per 10,000 gallons of water for every week unattended. If treating with a chlorinating shock, apply Algi-Control Concentrate on opposite ends of the pool.