Abstract: An underwater pool surface cleaning apparatus is provided comprising a suction head, a driving component spaced apart from the suction head, the driving component being arranged to move the apparatus underwater along a surface, and a first flexible hose to connect the suction head and the driving component together. In an example embodiment, a second flexible hose may be fitted to the driving component so as to join the driving component to a swimming pool filtration system. According to another aspect of the invention there is provided a driving component for an underwater cleaning apparatus. The driving component may comprise a body defining a chamber, a first end and a second end, with a valve arrangement being housed within the body. The valve arrangement is arranged to close and open so as to cause the apparatus to move.

Abstract: An underwater pool surface cleaning apparatus is provided comprising a suction head, a driving component spaced apart from the suction head, the driving component being arranged to move the apparatus underwater along a surface, and a first flexible hose to connect the suction head and the driving component together. In an example embodiment, a second flexible hose may be fitted to the driving component so as to join the driving component to a swimming pool filtration system. According to another aspect of the invention there is provided a driving component for an underwater cleaning apparatus. The driving component may comprise a body defining a chamber, a first end and a second end, with a valve arrangement being housed within the body. The valve arrangement is arranged to close and open so as to cause the apparatus to move.

Abstract: A direction control means for apparatuses for cleaning submerged surfaces in the form of an elbow joint with swivel connections at each end. The connections may include anti-friction surfaces.

Abstract: A cleaning apparatus for automatic cleaning of a submerged surface includes a body defining an internal chamber having an inlet and a pair of outlets, with each outlet being connectable with a suction source. A liquid flow transferring element is located inside the chamber for alternately transferring flow of liquid to each of the pair of the outlets from the inlet. The apparatus further includes a cleaning foot which is associated with the body and communicating with the inlet, the cleaning foot having an outer surface adapted to be located adjacent to and to travel over the submerged surface. The body is pivotal relative to the foot about at least one axis that is substantially parallel to said outer surface, through an angle of at least 80.degree., between a first position which allows travel of the cleaning foot relative to the surface in a first direction, to a second position which allows travel of the cleaning foot relative to the surface in a second direction.