Thank god, this is decades overdue. Seeing the white powder left on my fingers after I spilled some gas while sumping (to check for impurities, before every fli

Thank god, this is decades overdue. Seeing the white powder left on my fingers after I spilled some gas while sumping (to check for impurities, before every flight) always made me cringe. If the fuel is impure, standard procedure is to keep draining the impurities (water usually) out and just throw it on the ground.