A gear pump , comprising: a pump housing including a fitting block and defining a gear cavity , at least one inlet and at least one outlet defined in the fitting block , the pump housing further including a magnet cup in hydraulic communication with the gear cavity and the outlet , the magnet cup including at least one interior non-wearing location that is configured to contact aqueous liquid in the pump housing when the pump housing is substantially primed with the aqueous liquid; a suction shoe located inside the magnet cup and situated on the fitting block; at least a driving gear and a driven gear enmeshed with each other in the gear cavity and configured to produce fluid flow through interdigitation of gear teeth in a direction from the inlet, through the gear cavity , and to the outlet ; a permanent magnet situated in the magnet cup and being coupled to the driving gear in the gear cavity ; a magnet driver located outside the magnet cup and being magnetically coupled through the magnet cup to rotate the magnet in the magnet cup and, thus, rotate the gears in the gear cavity ; at least one pressure-absorbing member located inside the magnet cup at the non-wearing location between the gears and the magnet , the pressure-absorbing member being configured to contact the aqueous liquid, the pressure-absorbing member having a compliant property so as to exhibit a volumetric compression when subjected to a pressure increase in the aqueous liquid, the volumetric compression being sufficient to alleviate at least a portion of the pressure increase; and a retaining ring that secures the pressure-absorbing member at the non-wearing location between the gears and the magnet ; wherein the pressure-absorbing member at the non-wearing location is located outside the gear cavity where fluid flow is produced; and wherein the pressure-absorbing member holds the suction shoe in place on the fitting block . a pump housing including a fitting block and defining a gear cavity , at least one inlet and at least one outlet defined in the fitting block , the pump housing further including a magnet cup in hydraulic communication with the gear cavity and the outlet , the magnet cup including at least one interior non-wearing location that is configured to contact aqueous liquid in the pump housing when the pump housing is substantially primed with the aqueous liquid; a suction shoe located inside the magnet cup and situated on the fitting block; at least a driving gear and a driven gear enmeshed with each other in the gear cavity and configured to produce fluid flow through interdigitation of gear teeth in a direction from the inlet, through the gear cavity , and to the outlet ; a permanent magnet situated in the magnet cup and being coupled to the driving gear in the gear cavity ; a magnet driver located outside the magnet cup and being magnetically coupled through the magnet cup to rotate the magnet in the magnet cup and, thus, rotate the gears in the gear cavity ; at least one pressure-absorbing member located inside the magnet cup at the non-wearing location between the gears and the magnet , the pressure-absorbing member being configured to contact the aqueous liquid, the pressure-absorbing member having a compliant property so as to exhibit a volumetric compression when subjected to a pressure increase in the aqueous liquid, the volumetric compression being sufficient to alleviate at least a portion of the pressure increase; and a retaining ring that secures the pressure-absorbing member at the non-wearing location between the gears and the magnet ; wherein the pressure-absorbing member at the non-wearing location is located outside the gear cavity where fluid flow is produced; and wherein the pressure-absorbing member holds the suction shoe in place on the fitting block . <EOS>