Patent ID: 7273545

Claim:
A water intake open cavity drum, comprising: a drum body having an upper dome-shaped portion and a lower cylindrical portion which collectively define a cavity; a shelf dividing said upper dome-shaped portion and said lower cylindrical portion; a plurality of stabilizing feet radiating outwardly from said lower cylindrical portion; at least one water inlet disposed in said lower cylindrical portion; and a water outlet disposed from said upper dome-shaped portion and adapted for connection to a pump hose; a pipe plumbing adapter integral with said water outlet and extending radially from said upper dome-shaped portion, said pipe plumbing adapter having a plurality of step-down diameters disposed along its length; and a recessed tapering channel in said upper dome-shaped portion such that when suction is applied through said pipe plumbing adapter, a vortex fluid action is induced in water sucked from said cavity into and through said water outlet.