System for cleaning walls of aquatic basins

A system for treating internal walls of aquatic tanks, having at least one dynamic suction head, a mobility assembly for moving the dynamic suction head along a wall to be treated, the dynamic suction head comprising a rotary disk that is arranged in a rotary manner and connected to a rotational shaft able to be driven by a disk motor, the rotary disk bearing a wall interface layer, characterized in that the wall interface layer comprises a plurality of radial grooves arranged in the portion of the disk that is situated next to the wall to be treated and connecting the rotational center of the disk to the periphery of the disk and at least one orifice that ensures, when in operation in an aquatic tank in the immediate vicinity of a wall to be treated, a flow of water between the rear of the disk and the front of the disk, through the disk and passing along the radial grooves of the working disk and being ejected laterally and released into the water of the tank, this hydrodynamic flow generating a suction effect to press the disk against the wall.