The Goby Cleaner works like a robot without electricity and works on low flow. Its steering mechanism incorporates full function bi-directional steering in forward and reverse cycles. This is much smarter than a typical water powered cleaner. Patented self-cleaning gears allow the cleaner to effortlessly change direction and provide greater reliability with less wear. A patented variable torque turbine protects drive train from damage and helps pick up a variety of debris such as leaves, twigs, acorns and more. Debris does not pass through the gears, reducing risk of jamming and allowing for easy maintenance. Its Smart Track System reduces wear on tracks since they only make surface contact as needed.