Upon taking the sender float unit out I saw the rubber o-ring underneath had split, causing the leak. I've syphoned a couple of gallons out.
Replacing the o-ring should replace the leak, right? It was only leaking because the level was so high and the fuel return pipe was causing a pressure build up? Should there be a vent somewhere that might be blocked? Should the tank be pressurised like that?
Explanations gratefully received thank you
