Hello. The carpet first seems, large, solid. On assembly, it complicates it ... Already we are on plastic clamps and gaskets quite small, poor quality. Then the input is connected, there is the nozzle that works. For output, we give a tip of 50 cm .... impossible to have enough distance between the pump and the mat with 50 cm ... Oh, I forgot the main, when using an electrolyzer salt, it must be installed after the pump and before the electroliseur. I remember a 50cm pipe, rug good meter placed between two .... look wrong. After various mounting I could test it and when it works, there is no more output flow, which easily explained by the belt system which has so far too small gutters. In short, never used and unusable, maybe really late in the season when the water is really cold, failing to keep proper filtration.