Having spent some considerable time dredging using Keene and other equipment, vs trash pumps, I can tell you it is worthwhile to buy the Keene venturi and appropriately matched pump / suction hose / Nozzle... They just work very well, better pressure and volume from that pump design. We would modify our nozzles with handles to stand up with, and fire nozzles run from a second pump to break up hardpack material.. Would recommend a settling run with return back to the pond to recycle water if you have the space available to slow the flow enough to settle out your silt, youll be amazed just how much water youll run outta the pond.
