Water is transferred to the filter through the upper stub pipe, form where it flows down to the filtration bed.
Fluid flowing downwards is cleaned by the filtration material. Selection of the filtration bed, its granulation, filtration layer thickness is dependent on water physical and chemical parameters, as well as on technological process implemented.
The filtrate release is carried out through the filtration nozzles. The filter may completely tight which makes it useful in the final ozonised water treatment process stage as a carbon filter.