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How to Fill a Co2 Canister With an Air Compressor

You can use compressed air/CO2 canisters for a variety of applications, from paintball guns and accessories to pellet rifles. However, getting the compressed air/CO2 canisters filled each time by a shop can become expensive. If you have a compressed air/CO2 tank fitting and an air compressor, you can easily fill the compressed air/CO2 tanks yourself and save considerable money.

Things You'll Need

Air compressor
Compressed air/CO2 tank
Compressed air tank fitting

Instructions

- 1
  Screw the compressed air/CO2 tank onto the compressed air fitting on the end of the compressor hose. Unscrew the bleed-off valve on top of the fitting to allow all of the leftover compressed air/CO2 to evacuate from the tank.
- 2
  Close the bleed valve, then turn on the compressor. Fill the tank for approximately two seconds for each ounce of of compressed gas the tank will hold. For example, fill a 9-oz. tank for 18 seconds.
- 3
  Turn off the compressor, and open the bleed valve for just a second or two to clean out the lines and make sure the tank valve closes properly. Unscrew the tank from the compressed air/CO2 tank adapter, and use it at your discretion.

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