Patent ID: 7906017

Claim:
A circulation system for a body of water, said system including a flotation platform, an impeller, and a draft hose with a bottom portion, said draft hose depending downwardly from said flotation platform to position said bottom portion thereof at a depth below the surface of said body of water, said system further including a plate member extending substantially horizontally outwardly of a vertical axis and being spaced from and below the bottom portion of the draft hose, said plate member and bottom portion of said draft hose creating an inlet opening therebetween to said draft hose, said inlet opening extending substantially about said vertical axis wherein said impeller draws water from the depth of said body of water substantially horizontally through said inlet opening above said plate member up the draft hose toward the surface of said body of water, said plate member having a plurality of sections mounted for pivotal movement between a substantially horizontal position with said sections aligned substantially horizontally and an open position with said sections respectively pivoted downwardly about a substantially horizontal axis.