Rooftop drinkwater tanks

Water that is stored in a tank is susceptible to bacterial contamination. Especially in countries where the tanks are in the sun, the bacterial pollution will increase due to heat. 

Plation floats are specially developed to preserve drinking water kept in potable storage tanks. The floats consist of special ceramic balls with silver colloidal coating. When immersed in water the silver ions ( microscopic silver particles) are steadily released in a continuous flow. As they diffuse into the water they preserve and protect drinking water.