How To

How to Fill a CO2 Paintball Tank

By eHow Sports & Fitness Editor
Rate: (12 Ratings)

Filling a CO2 paintball tank is the backbone of recreational paintball. Without CO2 millions of recreational paintball players would be stuck throwing paintballs at each other. If you just started a paintball field, paintball store or recently got a job at one, you will be expected to know how to fill the CO2 paintball tanks.

Difficulty: Moderate
Instructions

Things You'll Need:

  • CO2 bulk fill tank
  • CO2 fill station
  • Paintball CO2 tank
  1. Step 1

    Check the date on the tank and verify that the tank has not expired.

  2. Step 2

    Attach the tank to your fill station.

  3. Step 3

    Drain the tank completely. Wait until you hear no gas coming from the tank.

  4. Step 4

    Hang the tank from your hanging scale and re-zero the scale.

  5. Step 5

    Close the bleed valve and open the fill tanks valve to fill the CO2 paintball tank.

  6. Step 6

    Allow the tank to fill to its capacity or about half of an ounce under capacity. Close the fill tanks valve when the small tank is full.

  7. Step 7

    Disengage the tank and bleed the excess CO2 from your hoses.

  8. Step 8

    Remove the tank from the fill station.

Tips & Warnings
  • If you bleed a tank and no CO2 rushes out it may be empty. Try to fill it a little and then bleed it.
  • Bleeding tanks is essential because it indicates how much you have filled the tank and it chills the tank. Cold CO2 tanks fill more easily.
  • Aluminum CO2 tanks are good for 5 years from the date stamped on the tank. They expire the first day of the month marked. Example "05A02" cannot be filled after May 1, 2007.
  • Chromoly CO2 tanks do not expire and must only undergo a visual check upon each filling.
  • Tanks fill quickly, especially when they are cold. Do not allow yourself to overfill a tank, as it can over-pressurize and burst.
  • Do not replace valves or burst disks on CO2 paintball tanks if you have not been taught how to do so properly. You could injure yourself or someone else.
  • Do not leave CO2 tanks near sources of heat. They could become over-pressurized and explode.
  • Always visually inspect a CO2 tank before filling. Stickers and tape must be removed for proper inspection. Failing to do so could result in injury to yourself or someone else.

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