[mjk67]

thanks for the reply . the actual pump setup is spring loaded with about 2-21/2" of travel/compression . there doesnt seem to be anything affected by compressing it i.e just wires & hoses bridgeing the gap. i will figure out how much of a sump is needed to install the pump and whether it is practical to do. if it does work can someone explain exactly how a venturi system works so i dont screwup something that gm engineered ? thanks again for the help jason