Patent ID: 7726336

Claim:
A submersible turbine pump for pumping fuel out of an underground storage tank, comprising: a manifold comprising an integral siphon connection coupled to a fuel flow path in the submersible turbine pump, said siphon connection in the form of a pluggable receptacle; and a siphon cartridge having an elongate portion removably inserted into the manifold via the siphon connection such that a fuel inlet and a fuel outlet defined by said siphon cartridge are located within said manifold along the fuel flow path, the siphon cartridge comprising: a nozzle directing fuel from the fuel flow path through a venturi within the nozzle when the submersible turbine pump is energized, thereby creating a vacuum in a chamber within the nozzle; and a connection point fluidly coupled to the chamber to provide a fluid connection to the vacuum, said connection point being located on said siphon cartridge at a location external to said manifold.