CO2 Bulk Fill Tips?

[Hsing-ee]

Fill gun. Bleed off co2 until gun gets cold, refill with co2.
If you bulk fill bottle doesn't have a dip tube, it will need to be inverted so you fill with liquid, not gas.
Fire extinguishers have a dip tube.

Thanks for that I think I understand it now. The SodaStream bottles don’t have dip tubes. Now you mention chilling the gun by bleeding I remember when I bought a Tau 7 from Mays of London years ago they recommended putting the pistol in a plastic bag and putting it in the freezer for an hour before filling it.