***USED - MISSING NUMEROUS PARTS - SEE COMMENTS*** Bio Pressure Pond Filter, up to 1600 Gallons, Pond Filter System with Convenient Cleaning Crank Handle for Garden, Pool, Fishpond, Black

Item is heavily used and dirty, see pictures. Doesn't do anything when plugged in. Unable to troubleshoot. Numerous pieces, including the blue parts and the pieces that screw into the item, are missing.