Hi I am trying to remove the fuel tank ( need to remove Tupperware ) and there is a hose which is connected to a right angled connector, the hose has a crimped on ring and not a jubilee clip, I am assuming I leave that pipe/connector alone and look at connector/tank, it looks as if the black connector should come off the white spout that appears part of the pump.

Anybody know how to release that connector from the tube it is pushed on to.