There are many reasons supporting the need for this type of system. Number one is that they require less maintenance than a wet system. The fact that the material is not mixed on the machine itself tells us that the abrasive wear on augers, shoes, bearings, and shafts no longer is a problem. The wash down after every load is no longer needed because 100% of the material is in the trailer. The operator can simply set the calibrated time and walk away. The belt will stop when the appropriate amount of material is delivered, and the valve will shut down the water at the prescribed time. Because the belt is empty there is no wash down required.