voidfinger said:and how much does a fill tank cost? thats probably gonna be $$$ but it wouldn't be a bad idea and you could make some money on the side.. wonder if its dangerous
That I am not sure about. You would have to check with your local welding gas supply store. I know my buddy down in Alexander City has his own nitrous refill station and he makes enough off of it his nitrous is basically free for him to use. It's not really any more dangerous than refilling SCUBA tanks. My buddy has a 100lb tank.