Both high-pressure and low-pressure mud guns agitate mud by means
of rapid fluid movement through a nozzle. Pressure and flow are delivered
via either high-pressure main mud pumps or, most often, centrifugal
pumps. There are two points of view as to where pumps for mud
guns should draw suction from:
(1) the compartment that they stir or
(2) a compartment downstream, ideally immediately after the last solids control device.