Flexible adapter for submersible oily and storm pumping systems

An assembly, comprising:

• a basin;
• a submersible pump, having an outlet, disposed within the basin;
• an adapter,
• wherein the adapter comprises:
• a housing having a first side and a second side;
• a reducing passage extending axially through the housing from the first side to the second side,
• wherein the reducing passage has a varying inner diameter such that a first inner diameter transitions to a second inner diameter;
• a plurality of fastener receiving holes extending transversely through the housing and disposed radially and circumferentially around the reducing passage;
• and
• a plurality of fastening elements extending from the housing at the second side;
• wherein the submersible pump outlet is connected to the adapter on the second side and an existing discharge line connected to the adapter on the first side,
• wherein the adapter provides a transition from a diameter of the submersible pump outlet to a diameter of the existing discharge line, and
• wherein a plurality of fasteners are extended through the plurality of fastener receiving holes to threadably connect the adapter to the existing discharge line.