The Gala DFRS removes particles down to 0.14 mm from process water. Clean process water after filtration in a polymer production process avoids the contamination of the product and the settling of fines in key underwater pelletizing system components. The entire volume of process water separated from the pellets in the centrifugal dryer is conveyed by a self-priming waste water pump to a vibrating screen where it is continuously filtered. The fines are automatically separated from the circulating water and collected in a container outside the water tank. The water dripping from the container is recycled into the process. By actuating a valve, the vibrating screen can be bypassed so the process water is conveyed directly into the tank.