A method of separating a liquid from a liquid-laden solid material includes providing a trough having a deck defining a support surface with passages extending through the support surface. LEDs are presorted into a plurality of groups, each group of LEDs having substantially the same color that is different than the color of another group. Whereas, the authentication server has a facial detection module, a facial feature extraction module, and a facial feature matching module. Thus, the stream of packets is distributed, or split up, across the available output paths, thereby balancing the load.