Abstract: A device for cleaning and circulating a liquid includes a one-piece plastic body having a strainer housing portion for receiving raw liquid which is to be cleaned, a filter housing portion from which cleaned liquid is to be discharged, and a pump housing portion for housing a pump and formed with a pressure outlet communicating with the filter housing portion and through which pumped liquid is delivered to the filter housing portion to be filtered therein. This pump housing portion is also formed with a suction inlet for delivering liquid to a pump housed by said pump housing portion to be pumped thereby to the pressure outlet. The filter housing portion is formed with a passage communicating on the one hand with the suction inlet and on the other hand with the strainer housing portion, so that raw liquid received in the strainer housing portion will flow therefrom through this passage to the suction inlet.

Abstract: An apparatus for producing a water current in a swimming pool which comprises an outer housing which is adapted to be attached to the wall of a swimming pool, said outer housing being provided with a suction nipple and a pressure nipple, a housing insert disposed within the outer housing and defining an annular intake space therebetween, partition means associated with the housing insert, said partition means subdividing the interior of said housing insert into a pressure chamber and a suction chamber, said pressure chamber containing a front wall and provided with at least one nozzle means disposed in said front wall, said pressure chamber being disposed between the pressure nipple and the nozzle means and cover plate means spaced apart from the front wall and covering the suction chamber on its front side, said cover plate means together with the side wall of the suction chamber defining an intake port in the sidewall of the suction chamber, said intake port providing communication between the annular intak