A flow controller for controlling water flow from a pump pumping water from a sump of a dishwasher to a water conduit system of the dishwasher. The flow controller comprises a plate with openings. The openings form water outlets to the water conduit system. The flow controller also comprises a disc rotatably arranged in relation to the plate. The disc comprises openings arranged for allowing closing and opening of the water outlets in the plate during rotation of the disc. The flow controller comprises a cavity formed between the disc and the plate configured to allow water to flow back from the water conduit system via a water outlet in the plate being closed by the disc and via the cavity to a drain outlet in the plate. Hereby water can return from a closed water outlet in the plate via the drain outlet in the disc to the sump.