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C02 Bottle Question

can be stored laying down, but must be used upright. IIRC
 
Ramsey is correct, it can be stored on it's side or tilted. If you try to use it in that position you get a dangerously cold liquid.
 
Ramsey said:
can be stored laying down, but must be used upright. IIRC

Half marks.

Most CO2 tanks (outside the paintball world) would be called "open" tanks - since there is no inlet tube under the valve. Therefore, the valve will pass whatever's under it - whether it's upright (and passing "gas") or sidewise/upside down (passing "liquid.")

Paintball tanks can be divided into two categories - "siphon" tanks (which are set up to pass liquid at all times) and "anti-siphon" (which are set up to pass gas at all times.) A "siphon" tube will typically have a flexible feed tube with a small weight on it, designed to keep the end of the tube submerged.

An "anti-siphon" tank will have a rigid feed tube and an alignment mark on it (this side up, or something to that effect) to keep the end of the tube above the level of liquid in the tank, and make sure that it passes gas.

It's possible to set up an "industrial" tank with a feed tube to make it a siphon/antisiphon tank, just ask and see.

You could get an anti-siphon tank that can be run on its side (if you explain what you want, they can probably tell you how to do it. Or just Google <paintball> and either term, and you'll get an explanation of how to DIY...)

However, if you get an OTS tank and want to store it on its side, make sure you let it sit upright for about 30 seconds or so before you start using it - the brief shot of liquid you might get could freeze the regulator, and cause other problems. You can store the tank on its side indefinitely, tho.

One last thing - if you're going to just store the tank, there are a couple precautions to keep in mind....

1) Keep out of direct sunlight. If the temperature of the tank manages to exceed about 130*F, you'll find out what the "Safety Burst Disc" is for...

2) If possible, keep it attached to a hood with a vent line to the outside of the vehicle. If the burst disc goes, you'll be filling the cabin with CO2 quickly. If the valve leaks, you'll be filling the cabin with CO2 slowly. Either way, it's useful to remember that your body gets rid of CO2 for a reason...

5-90
 
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