Suction Gold Dredge Basics Steve''s Guides
Jun 13, 2018#0183;#32;What a dredge manufacturer calls a 5quot; dredge may be a 4quot; intake nozzle dredge for permitting purposes. Nozzles sizes may be up to 2quot; smaller than hose sizes. A gold dredge is powered by a motor and pump. A common misperception is that gravel is sucked through the pump. The pump actually pumps only water, which is delivered to a venturi type device (called a power jet or a suction