Confirmed. Best way to find a short term solution for filling your bottle away from a site.If you have the fitting (A-clamp or din fit) a dive shop will fill the tank up for you for a max of a few quid.
yer but they fill my air rifle tank with c02 at a 50p a go, im friends with them you see so i get it cheep, so buying a tank although it would pay off in the long run it would take a very long time to do so. bit like double glazing realy.in the long run it will work out cheaper to buy a dive tank.........