Algae are plant organisms that exist in the atmosphere in the form of dust and develop in pools and hot tubs as soon as they find suitable temperature and humidity conditions, creating cloudiness in the water, slime, and greenness on the walls and bottom.

The liquid algicide Water Treatment Hellas has a powerful - based on quaternary ammonium - bactericidal, fungicidal, and algicidal action, acting quickly and effectively for the prevention and elimination of algae. The initial dose of this reliable algicide is 3 liters per 100m3 of water, and the maintenance dose is 60g for every 10m3 of water weekly.