Abstract: A dewatering pump assembly including a rotatably supported reel about which a flexible conduit is wound and which passes from the reel through a driven roller assembly to be attached at one end to a hydraulically driven pump assembly which is lowered into a bore hole or the like. Hydraulic supply and exhaust lines pass through the conduit to the hydraulic motor of the pump assembly and the driven roller assembly includes a plurality of pairs of cooperating rollers arranged to arcuately bend the conduit and direct the conduit between the bore hole and the reel.