Patent ID: 6860992

Claim:
A water treatment unit, comprising a first housing having transverse dimensions and a height, said transverse dimensions being substantially greater than the height of said housing; a substantially vertical outer wall extending around and defining the perimeter of said first housing; at least one substantially vertical inner wall in said first housing spaced from said outer wall and defining a chamber between said inner and outer walls; a plurality of openings in said outer and inner walls constructed and arranged to direct water to flow in a substantially transverse direction through said chamber; a bottom wall on said first housing closing the bottom of said first housing at least at said chamber between said inner and outer walls; a top wall closing the top of said first housing and said chamber between said inner and outer walls; a discharge from said first housing and within said inner wall; a finely divided water treatment medium in said chamber and positioned therein so that the water flows transversely through said finely divided medium; and a second housing which depends downwardly from said first housing and defines a chamber in said discharge, said second housing having a discharge to discharge the water from said chamber in said second housing.