If you start working on them, send me a pm with a fix for this problem:
Plugged up a CO2 and the CO2 came out every possible seam in the marker. Possible o-ring problem or what? Where are all the o-rings in the marker to change them out. I had checked the bolt, all the o-rings looked fine.
I like the marker and still have it. I want to use it again someday or use it for a spare.
for the topic i found this: