How to fill up a co2 tank at home

Written by bryan lutz
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How to fill up a co2 tank at home
Playing paintball requires a fair amount of regular CO2 tank refills. (Digital Vision./Digital Vision/Getty Images)

Gas-powered devices such as paintball guns and keg systems require pressurised CO2 in order for them to work properly. The tanks containing this pressurised gas come in a variety of shapes and sizes, and need to be refilled regularly. There are a number of places you can get a CO2 tank filled up at; however, if you are going to be using a lot of CO2, it might be a wise investment to get your own fill up station for your home.

Skill level:
Easy

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Things you need

  • CO2 tank
  • Dual valve fill station
  • Scale
  • 22.7kg. CO2 bulk tank

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Instructions

  1. 1

    Purchase a 22.7kg. CO2 tank with a siphon tube, a scale that can weight up to 2.27kg., a fill station with a dual valve to allow you to fill up and empty tanks. Bulk CO2 tanks and the rest of the equipment can be purchased online or ordered through paintball retailers.

  2. 2

    Secure the 22.7kg. tank somewhere secure like a basement corner or attached to a workbench. Place the small plastic ring that came with your fill station between the tank nozzle and the fill station.

  3. 3

    Check the hydrotest date on the tank you wish to fill up to make sure it hasn't expired.

  4. 4

    Empty the tank you're filling by attaching the siphon tube to it, loosening the release valve on the dual fill station and opening the valve on the tank you wish to empty.

  5. 5

    Place the empty tank on the scale and zero the scale so you can figure out how much gas you're putting into the tank.

  6. 6

    Chill the tank before filling it by putting about 1 or 2 oz. in the tank and then letting it out by opening the purge valve. This preps your tank so that you can safely get the most gas in there.

  7. 7

    Fill your tank by opening the valve on the bulk tank. Make sure you don't actually fill your tank to capacity as this could be dangerous. Instead, fill it to about an ounce or two short of its maximum capacity, which should be labelled on the side.

Tips and warnings

  • Make sure the tank you purchase comes with a siphon tube. The siphon tube makes sure that your tank is being filled with just CO2 and not regular air.
  • Compressed air canisters can be very dangerous if misused. Make sure you keep your bulk tank and your smaller CO2 tanks somewhere secure and away from heat.
  • The compressed CO2 is extremely cold, so keep your hands away from the purge valve and the release valve on the fill station.

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