Black Algaetrine concentrate controls the growth of problem black algae in swimming pools. The formula contains copper and special penetrating agents that kill and prevent regrowth of the most deeply rooted black algae cells. Is safe for all pool construction types and allows swimming immediately after treatment. Black Algaetrine works best when added by itself directly to pool water. It should not be mixed with soap or other cleaners, or pre-mixed with other water treating chemicals.
Visible Algae Growth: Apply 12 ounces of this product per 10,000 gallons of pool water. Settled algae debris may be removed by vacuuming.
Heavy Algae Growth: First vacuum, clean, and scrub walls. Apply 12 ounces of Black Algaetrine algaecide per 10,000 gallons of pool water. Vacuum to remove algae debris.
Maintenace Dose: (Free of visible algae) Apply 6 ounces of Black Algaetrine algaecide per 10,000 gallons of pool water every 5 to 7 days. NOTE: If high temperatures prevail or pool has unusually heavy use, add maintenance dose more frequently.
Tip: Algaecides are most effective when applied in the morning on warm, sunny days. Because black algae is protected by a tough, waxy coat, it is important to use an algaecide specifically for black algae such as Black Algaetrine™ algaecide.
Advantage: Combination of algaecides specially formulated for black algae. Contains 3.07% active copper.