Algae in your cooling tower is best prevented by:
There is no single solution for preventing algae in a cooling tower. Chances are, you'll need a multi-faceted approach that focuses on being proactive in preventing algae, not just treating it once it's there. That's because even a small amount of algae can quickly grow out of control, setting you up for the health dangers and efficiency problems we mentioned above.
Ideally, you'll use your water management team to create an algae prevention plan. You'll also need to detail your algae prevention strategy in your overall water management plan