Abstract: A plant comprising a water filtering device with a motor pump, the device for chemically treating the water, the pipes with the corresponding valves and with the openings for receiving the water from the swimming pool and for returning the cleaned and treated water to the swimming pool, and the corresponding accessories are all connected and installed on a base framework allowing to transport the whole ready-to-operate plant to a chosen site. All of the components making up this plant can be distributed in independent modules being apt to be fitted to each other. The assembly being made up of all of the components and accessories of the plant, both if they are installed on a single base framework as well as if they are distributed in modules, is of such dimensions as to be apt to be put in a conventional container facilitating its transportation.

Abstract: A swimming pool comprising a perimetral structure supporting the water holder being made of plastics material and is characterized in that the perimetral structure is apt to rest on the surface on which the swimming pool is to be installed, the perimetral structure comprising tensioning members being fitted to it and transversally arranged from side to side of the perimeter in an underlying arrangement. The perimetral structure comprises base supports being transversally arranged along the swimming pool perimeter and joined together by means of a backwardly arranged side member, the base supports frontally supporting the panels that will make up the swimming pool contour. The tensioning members are made up of ropes being provided with means to adjust their tensioning.