The surface skimmer I can only recommend. The structure is simple, in a short time he was easily fitted. Previously had always problems to get the surface of the pool clean. I was constantly on the move with the Käscher. Within a few minutes, after which I had connected and turned the skimmer to the sand filter, the surface was clean. I had previously set the inlet nozzle at the pool so that the water moves in a circle, thus the dirt is automatically led to the skimmer again. Skimmer automatically compensates for the different water level. The pool chemicals can now be added easily through the skimmer in the pool. I appreciate the quality of the material as well. Various accessories are included. Only for the hose connection to the inlet for my pool no adapter was, but had such a hand. Now makes bathing even more fun because the surface is clean.