Well, your quite welcome.
But, no need to thank me, I just persuaded you to accept what you knew all along, that is, thrash in a fuel tank doesn't go away...it just continually comes back to haunt you.
Next time you have to vacuum a confined space, try my "suck bucket" method with a shop vac. Keeps the shop vac a whole lot...cleaner? Read post 43 of this thread, http://www.heavyequipmentforums.com/...t=14609&page=3