"In the traditional gas can when dirt gets in, and it will, it settles at the bottom of the can. As long as you don't completely empty the can (which I never do) dirt will remain at the bottom. I see a possible issue with dirt coming out of this new style can and entering the tank you are filling since the filling nozzle is at the bottom of the can. Maybe install a filter at the filling port of the can could resolve any dirt entering the can."