Patent ID: 7059759

Claim:
A method for treating a body of liquid in a tank, including the steps of withdrawing a flow of liquid from the body of liquid inside the tank, pressurizing the flow of liquid, reintroducing the flow of liquid into the tank through at least one jetting device, the jetting device introducing the flow of liquid through at least one nozzle located in the body of liquid into the body of liquid inside the tank in order to cause agitation and stirring to the body of liquid, the at least one nozzle being adapted for powered rotation completely about a first axis through 360 degrees and completely about a second axis through 360 degrees which is transverse, perpendicular, or non-perpendicular, to the first axis, said jetting device comprising power means for driving the rotation of the at least one nozzle completely about the first axis through 360 degrees and for driving the rotation of the at least one nozzle completely about the second axis through 360 degrees.