Common “green” algae are microscopic, aquatic plant-like organisms and can be free-floating or wall clinging. Algae grows in salt or fresh water and thrives in temperatures above 85°F. In fact, it can “bloom” overnight. Algae spores constantly enter pool by rain, wind, animals, toys or swimsuits and left unchecked, can clog filters and create surface damage.

• Use ALGAE KILLER as it kills black and green algae in swimming pools
• Use MSA II as it kills all types of swimming pool algae and resistant algae
• Use ALGI SHIELD as it kills mild green algae in swimming pools

1. Maintain a sanitizer residual of 1-3ppm
2. Do an initial and weekly application of a preventative algaecide (such as BACK UP Algae Inhibitor)
3. Shock routinely
4. Make sure there is adequate circulation and filtration
5. Brushing surfaces is vital