exchange
No paintball gun will work without a CO2 tank or other propellant tank. without Co2 there is nothing to push the ball out of the barrel.
A CO2 tank does not necessarily have to be upright. It depends if you want liquid CO2 or gaseous CO2. When I purchased a CO2 tank for a specific application, namely, CO2 snow cleaning, I had the option of getting a tank that either had a dipstick, that picked up liquid CO2 from the bottom of the tank, or one that had no dipstick so that it collected gas from the top of the tank. I selected a tank without the liquid pickup. So, my upright tank output gas. However, if I wanted liquid CO2, I would put my tank slightly upside down, and get liquid CO2. It is probably not recommended to run a commercial gas tank in a non-upright position. So, depending on what type of tank you have, and what type of output you want, the answer to your question literally is: depends. For farm and garden use, you are probably seeking gaseous output, and probably have a tank with no dipstick; based on these assumptions, yes, you will need to keep your tank upright.
No co2 tanks are sold full.
"H" is not a size for CO2 tanks
There is no such thing as a "CA" tank.
You cannot unless you have a gauge installed, or know the exact weight of the tank.
yes you can when you use a compressor only fill up the co2 tank for 2 seconds for every ounce the tank can hold (9 ounce tank=18 seconds) <><><><><> However, the CO2 tank is designed for CO2, not ordinary air, and it is rated for only a specific pressure. If you don't have the proper equipment to do this, it is better for your own safety to leave it to a professional.
There are approximately 14.2 kg/cm² in a 20 oz CO2 tank.
A CO2 tank typically contains 100% carbon dioxide gas. When the tank is compressed, the gas is stored in its pure form without any other gases or contaminants.
It is a used tank that has been fixed or had parts replaced.
~$30