The unique and innovative design of the TopUp System allows for significant reduction of evaporation while cooling the water, maintaining high water quality, reducing growth of algae and preserving a healthy ecosystem. The system also serves as an effective bird deterrent.

 

The ball is made of two identical half shells, with a float in the middle. The shells have holes at their extremities and openings on their sides which fill half-way with water when the balls are placed in water.

 

As the sun’s energy hits the ball, instead of heating the reservoir water and causing its evaporation, most of it is reflected back and the rest generates evaporation inside the ball. The water that evaporates from the bottom half rises into the top half and perpetually condenses, returning back down.This evaporation-condensation process creates thermal distillation, which kills parasites and enhances water quality.

 

The inner evaporation creates a difference in pressure within the top half shell which results in a difference in temperature. Thus the temperature of the ball and ultimately, the water in the reservoir, is reduced. Due to the inner process each ball serves as mini cooling tower.

 

In the bottom half of the ball which is full with water, new water continually enters from side openings and water is released into the reservoir from the lower holes. This circular flow means there is no standing water.