Cabin smell of fuel

[bonbon]

After overnight parking had smell of petrol in cabin. The petrol cap seemed to have a small leak - but ultimately it was a small leak around the fuel pump/gauge flange that was the source of the smell. Used the dedicated tool to tighten the big flange. Seems like last time I fixed the gauge it was not tightened enough - pictured how much it needed to be tightened (at the time I did not have the tool - pictured).
PS - I did it without removing the chair 🫣