A sewage pumping station which is embedded in the ground. The sewage pumps station includes an upright cylindrical sump which holds sewage, such as that indicated generally. An inclined portion at the bottom of the sewage pumps serves to direct solids which may settle out of the sewage toward the left of the sump as seen. A supply pipe, or conduit, opens into the sump which supplies sewage. A casing provides a machinery compartment, indicated generally. The casing includes a floor plate which rests on the top of the sump, and is closed off at the top by a pair of hinged hatch plates.
A pair of motor-driven centrifugal sewage pumps, are mounted within the machinery compartment. The submersible pumps are supported at substantially the same elevation above floor plate, and each has an inlet side facing downwardly, and a discharge side formed by a volute. The discharge sides of submersible pumps are connected, through check valves respectively, to a common discharge pipe, or conduit. The check valves permit flow away from the submersible axial pumps only, as indicated by the arrows in the figures.
Also within the machinery compartment is a priming chamber. Such is mounted on floor plate between pumps. The priming chamber is divided into two compartments, by an upright plate and a horizontal mesh screen, both of which are suitably anchored in place within the priming chamber. The lower horizontal edge of plate is spaced above the bottom of the priming chamber and screen extends horizontally from this lower edge.
