I acquired a 'gas neck extension' that 700 RPM suggested and it works great. I took my screen out because, today's repops are snap in and my tank has threads that, BTW, have worn down so much, no screw type screen would work. I put a towel bib around the mouth opening and I use a dip stick marked with gals up to ten telling me how many gals I need....after saying all of that, I have been stupid enough to overfill it twice. Won't ever happen again!!!!!!!!!!!!!!!!!!