It all depends on the C02 cartridge. If it's a small 12 oz cylinder, then the answer is NO.
unscrew the tank, this will vent any co2 that is in the marker out the asa
you unscrew it. turn it left.
It depends on the size of the cartridge and the efficiency of the gun and the outside temperature.
you screw the adapter into the gun, and then the co2 cartridge.
Unscrew your CO2 tank, screw in a HPA tank. If your marker is CO2 only then you may have to have a regulator or other parts installed.
Its Normal, Its Just Releasing Pressure.
You can refill the tanks with threads on the end, you can not refill the disposable 12 grams cartridges.
If the co2 cartridge is full unscrew the back slowly until all vapor is gone, then just unscrew the back all the way off and it will slide out.
It depends on the gun and adapter but usually you have to insert it seal first into the area where the pin is (there will be an oring there). Usually you have to screw something in to pierce the seal, but there could be a lever or other device instead. The other method is you unscrew the charger from the gun, drop the co2 cartridge in, and screw it back on.
Simply grab the "butt" of the tank and twist it left. To save your O-ring, shoot as you twist. This releases the pressure built up from the CO2
CO2 cartridges are used for tasks such as refilling flat tires and to carbonate soft drinks such as Soda. CO2 Cartridges are also used to power certain Airsoft and paintball guns.