That sounds to me like how you're supposed to use unthreaded cartridges. I have an Innovations CO2/mini pump that gives those instructions. I haven't tried a non-threaded cartridge yet, so I haven't figured out if there's some special trick that you're missing. What size are the non-threaded cartridges you're using? My pump says that it works with whatever threaded ones, but unthreaded ones must only be 12g. Maybe you have the wrong size?
It sounds like maybe the threads were messed up from the start. See if you can get a replacement.





Reply With Quote