Patent ID: 7757706

Claim:
A backwater valve assembly comprising: a valve housing having: an interior, an inlet to the interior, an outlet to the interior, and a riser providing servicing access to the interior; the housing having an internal ledge within the interior on which is positioned a retainer clip oriented in vertical alignment with the riser; a valve member adapted to be pivotally positioned across the inlet of the housing so that liquid flows in through the inlet and out through the outlet, but any reversal of flow is prevented by the positioning of valve member, the valve member having: a first face, a second face, and an peripheral edge; a mounting along the peripheral edge which includes transverse pins adapted to engage the retainer clip; and a first engagement of a two part engagement on the first face; a servicing tool adapted to insert and remove the valve member through the rise of the valve housing, the tool having: an elongated shaft having a working end; and a second engagement of the two part engagement at the working end of the shaft, the second engagement being adapted to engage the first engagement of the valve member; and a pipe extension extending vertically from the riser of the valve housing, the pipe extension having an internal locking mechanism for securing the servicing tool within the pipe extension, the servicing tool being used to maintain the transverse pins of the valve member engaged with the retainer clip of the valve housing, the servicing tool being secured against axial movement within the pipe extension by the internal locking mechanism.