If the water becomes green, algae invasion is present. Treat the pool water efficiently with Anti-Algae Green Protect Pro or Anti-Algae Green Protect Extreme, then return to using the preventive Anti-Algae Green Protect. Maintain water within recommended chemical parameters. Dosage: Initial: 100 ml product/10 m3 of water. Action time: 72 hours. Maintenance: 45 ml product/10 m3 of water/week. Action time: 7 days. Pool Products