Abstract: A pump and submersible solids processing arrangement includes a pump, having a suction inlet and discharge, and a submersible solids processing arrangement positioned in fluid communication with the suction inlet of the pump and being structured to macerate larger solids and matter that is entrained in a fluid to thereby reduce the size of the solids prior to entry of the fluid and solids into the inlet of the pump, the arrangement further including macerating members the speed and arrangement of which are selectively determinable or adjustable, and the arrangement further comprising an agitator arrangement for directing solids into the submersible solids processing arrangement.

Abstract: A bearing lubrication system for a centrifugal pump includes a hydraulic recirculating pump that is structured to provide recirculation of a fluid to and from the motor that drives the impeller of the centrifugal pump, and a system of efferent and afferent conduits that are connected to both the motor and the bearing housing of the centrifugal pump to direct lubricating fluid to or from the bearings, and to or from the motor for recirculation to the hydraulic recirculating pump, thereby utilizing the lubricating fluid used to lubricate the drive motor as a means of lubricating and cooling the bearings that support the rotating shaft of the pump.

Abstract: A roving submersible pump arrangement for movement in a body of fluid is presented. The pump arrangement includes a submersible pump having an inlet and a discharge outlet and a buoyant transport device connected to the submersible pump. The buoyant transport device is operable to position the inlet of the submersible pump at a selected distance from a surface containing the body of fluid.

Abstract: A bearing lubrication system for a centrifugal pump includes a hydraulic recirculating pump that is structured to provide recirculation of a fluid to and from the motor that drives the impeller of the centrifugal pump, and a system of efferent and afferent conduits that are connected to both the motor and the bearing housing of the centrifugal pump to direct lubricating fluid to or from the bearings, and to or from the motor for recirculation to the hydraulic recirculating pump, thereby utilizing the lubricating fluid used to lubricate the drive motor as a means of lubricating and cooling the bearings that support the rotating shaft of the pump.

Abstract: A pump and submersible solids processing arrangement includes a pump, having a suction inlet and discharge, and a submersible solids processing arrangement positioned in fluid communication with the suction inlet of the pump and being structured to macerate larger solids and matter that is entrained in a fluid to thereby reduce the size of the solids prior to entry of the fluid and solids into the inlet of the pump, the arrangement further including macerating members the speed and arrangement of which are selectively determinable or adjustable, and the arrangement further comprising an agitator arrangement for directing solids into the submersible solids processing arrangement.