Manure pit stirring system

A manure pit having a stirring system comprising,

• a manure pit having spaced access openings along one side,
• a portable stirring device movable between said access openings and insertable therein for stirring liquid and solids in said pit,
• said stirring device including an elongated tube having an upper end disposable at the top of the pit and a lower end disposable in the bottom of the pit, said upper end having liquid inlet openings and said lower end having an outlet opening, and a pump in said tube for drawing liquids in said inlet openings and discharging it out said outlet opening whereby liquid drawn in at the top is pumped out into solids on the bottom of the pit thereby mixing and stirring the liquid and solids in said pit,
• said pump including a shaft extended axially through said tube and having blade means along its substantial length for moving said liquid downwardly from said inlet openings to said outlet opening,
• said blade means being arranged on said shaft for increasing in pumping capacity towards said outlet opening,
• said blade means including radially extending propellers on said shaft at the upper end of said tube and radially extending paddles on the lower end for progressively increasing the pumping capacity,
• said paddles being arranged in planes generally parallel to the axis of said shaft and including upper and lower portions disposed out of the plane of the paddle with the upper portion having a leading edge spaced from said plane in the direction of rotation of said shaft and said lower portion having a trailing edge spaced from said plane in the opposite direction.