The skimmer head is flosting on the water surface,an air pocket is ensuring it is best possible position.
Under the function of the water pump,a thin water-screen can be sucked by the skimmer.
The littl motes can go into the pond filter through the skimmer,but the big dunghills,like branches,leafa and other floaters will be hold up in the filter basket.
The large volume filter basket can extend the maintenance period. Filter basket volume 3,500 cubic cm
Model: CSP 2500
Output: 25000 l/h