line up the threads of the tank with the asa, which will be on the bottom of the grips. Then screw it in clockwise until you cant anymore.
A compressed C02 tank or High Pressure Air tank propels the paintball.
Definitely a tank before a hopper. If you go on Zephyr Paintball they have a 20 oz C02 tank for only 14 dollars and a proto primo hopper for also 14 dollars.
If you meant "why do you need any gas tank for Paintball": the expanding c02 or hpa is what pushes the ball out of the barrel at high speeds and can be used in reseting the gun. If you meant "why you need a C02 tank specifically": you dont need a co2 tank to play paintball. their is compresed air tankes available. most electrical guns must run on air enless you want to be doing maintenance on the gun after every game and replace parts after 5 games. most non electrical guns also can be ran on air but is capable of runing on co2 but air would keep your gun in better condition. You need co2 or compressed air(nitrogen and compressed air are the same thing) so the paintball can fly out of the barrel and to re cock your gun automatically.
No tubes attach the gun and the tank. You might be thinking of o-rings which are rubber rings that create an airtight seal.
On a paintball gun C02, or High pressure air is necessary. It is compressed air that, when the trigger is pulled and the marker fires, propels the paintball out of the barrel.
It's best if you ask a scientist who has some C02
overpowered probably
Where the air tank or co2 tank normally attaches
your local paintball field. Or you can purchase a scuba tank and adapter to fill the paintball tank with and every once in a while fill the scuba tank up if you live like out in the middle of nowhere
Filling your C02 tank yourself can be dangerous and is highly recommended to go to licensed facility to have them fill it. If you still want to do it your self you could get a giant cylinder of C02 with a hose and proper adapter and diy.
you screw the adapter into the gun, and then the co2 cartridge.
Take it to an airsmith or paintball tech.