Patent ID: 7178979

Claim:
A water agitation system configured to be positioned within a water retention structure configured to receive and retain water, said system comprising: a housing having a drive shaft extending downwardly therefrom; a plurality of beams operatively connected to said drive shaft, said plurality of beams configured to rotate about a longitudinal axis of said drive shaft; and at least one buoyant stirrer, that slidably engages at least one of said plurality of beams, wherein said at least one buoyant stirrer is configured to move relative to said at least one of said plurality of beams in response to a level of water within the water retention structure, wherein said plurality of beams includes first and second upright members, wherein said first upright member is connected to a first end of a horizontal member and said second upright member is connected to a second end of said horizontal member, and wherein said at least one buoyant stirrer includes a first buoyant stirrer that slidably engages said first upright member and a second buoyant stirrer that slidably engages said second upright member.