How can you tell if your Co2 tank is siphon type?

Answer 1

There are two ways to test if your Co2 tank is a siphon type tank.

(1) Look on the side of the brass valve for either an "S" for siphon or "DT" for dip tube that would be used to draw the liquid from the botom of the tank. Either of these would indicate a shipon type valve.

(2) If you do not find the "S" or "DT" on the valve there is a good chance that it is not a shipon tank. You can do a second test to verify this. With the tank upright and securely supported, open the valve and watch the discahrge. If it looks like snow and falls to the floor you have a siphon tank. If you get just gas and no snow, it is not a siphon tanks.

Caution Co2 is very cool and and burn skin. Be sure to protect yourself when performing this test.