Submersible Dredge Pump type DOP250 with sand production head A submersible dredge pump type DOP250 has been delivered together with MultiCat1908, thus turning it into an instant dredger. The DOP is maneuvered by an A-frame, and the power pack and jetpack are located on deck leaving plenty of space for dredge piping and anchor handling. The DOP dredge pump will mainly perform maintenance dredging activities. See all deliveries