A pumping apparatus and method incorporates at least one and preferably as
many as four components that are configured to improve debris removal
capabilities as compared to prior art apparatuses. The apparatus and
method impart cyclonic motion to pumped fluid, in a manner that tends to
separate entrained solids and other impurities, and further that helps
draw solid impurities away from the pump barrel. In a preferred
embodiment, a cyclonic effect first occurs in a seat plug having a
funnel-shaped accumulator region leading to an interior passage
therethrough, and at least one off-center opening extending from the
interior passage to the exterior of the plug. In one embodiment, that
effect is continued at a plunger adapter that has a plurality of
inward-angled rings, and that also features off-center openings through
which debris may pass to the interior of the plunger adapter. A top
plunger adapter may also be provided, having angled veins and openings
therethrough to impart cyclonic motion to the pumped fluid as it exits
the interior of the top plunger adapter. Finally, it may also be desired
to provide a cage having angled veins, to continue the cyclonic effect on
the fluid as it travels northward and into the pump barrel.