Patent ID: 7790023

Claim:
An apparatus for removing liquid from a liquid sediment basin provided for sediment control, said apparatus comprising: a) a float assembly adapted for floating in liquid collected in said sediment basin; b) a weir collar means having an inner circumferential surface, a plurality of circumferential openings for passing said liquid, and rigidly supported by said float assembly so as to be disposed proximally below the surface of said liquid in said sediment basin; c) a flexible, bellows conduit having an inner circumferential surface, an upper end connected to a bottom end of the weir collar means, and a lower end connected to an outlet discharge means; and d) a perforated riser pipe including a plurality of fluid flow openings disposed circumferentially along said riser pipe circumferential surface, and having a bottom end portion rigidly connected to said outlet discharge means to provide support for the float assembly, e) said riser pipe having its outer circumferential surface laterally disposed inwardly from an inner circumferential surface of said inner circumferential surfaces of the weir collar means and bellows conduit to form an annular opening between said inner circumferential surfaces and the outer circumferential surface of the riser pipe; f) said riser pipe being effective to allow movement of the weir collar means and flexible, bellows conduit up and down along its outer circumferential surface to enable the float assembly to move up and down with the surface level of liquid in said sediment basin.