A unique solution from DTS comprises an auger elevator combined with washing action. Washing augers are used to remove soil from unpeeled potatoes, or skin residues from peeled potatoes. The specially designed auger creates tumbling of potatoes while being washed. It can be enhanced by removable product tumblers mounted on the auger blades together with a series of water sprayers to intensify the washing effect. The system is supplied with a DTS drum-type water screen to separate solids from the recirculation water used in the washer. Fresh water is used for the final rinse.