Patent ID: 7438080

Claim:
A dewatering system, comprising: a catch basin adapted to collect water from an area; an elongated discharge chamber having a muzzle at a distal end in communication with a desired outfall body and a substantially closed proximal end, wherein the muzzle includes a first backflow prevention device to prevent backflow from the outfall body into the discharge chamber while permitting discharge from the discharge chamber via the muzzle; conduit interposed between the catch basin and the discharge chamber so as to provide fluid communication from the catch basin to the discharge chamber, wherein a second backflow prevention device is interposed between the catch basin and the discharge chamber within the conduit to ensure water communication from the catch basin solely in a direction to fill the discharge chamber; wherein the discharge chamber further comprises a vent providing communication from the discharge chamber to atmosphere to enable the escape of air from the discharge chamber as water fills the discharge chamber; an anchor securing the discharge chamber in a desired orientation and depth with respect to the outfall body and the catch basin; a supply of compressed air fluidly interconnected with the proximal end of the discharge chamber; a control valve in fluid communication with the supply of compressed air for operatively controlling the flow of compressed air into the discharge chamber; and whereby actuation of the control valve releases compressed air into the proximal end of the discharge chamber to forcibly discharge water out of the discharge chamber via the muzzle and into the outfall body to dewater the area.