Abstract: A new apparatus and method for feeding cotton continuously, uniformally, and at a constant rate to individual gin stands in a battery of gin stands is disclosed. The full flow feeder comprises a rectangular chamber with an upper and a lower section. Valves which form part of the chamber sides in the open position close to form two sections when in the closed position, causing the device to operate as a single chamber in the open position and a dual chamber in the closed position. On-off control switches located in the upper and lower sections operate to balance the flow of seedcotton by signaling a system of hydraulic cylinders to open and close the valves.