PLC-controlled Model CLP-9044 automatically backwashes filters, polishes standing water during night, and eliminates sludge buildup on regular cycle. Self-contained system stands on steel or stainless steel platform measuring 6 x 9 ft. Separate tank holds 600 gal. First-stage multimedia filter screens out solids down to 40 microns. Second-stage activated carbon filter removes pesticides, solvents, and hydrocarbons.