14Zwart: Filtration is a gravity feed from 2-bottom drains into a 3-chamber filtration system. The first chamber is for settling of solids, the next has five rows of brushes and then the bio chamber has two 2" pipes with holes drilled for even disbursement through spring-flow media. The pump then feeds the waterfall.The other pump is for the skimmers and two jets. Drawing by Kristine Peterson
