Lakes, ponds, open water sources such as dams and canals were exposed to sunlight for the algae makes the recovery. Water supply system, water from these filters are used to obtain the time algae. The difference between other filters within the natural filter through which kuartstan. During this transition is not by sticking kuartsa algae in the water. To clean the algae paste or re-called back washing method is applied.
Note: The system is not used alone. Must be connected to the output filter.