C02 tank question.

[Jeffo2448]

OK, I have a 16 oz Mini chormolly tank, but half of the time when I take it off my gun, it hisses because the pin is sometimes screwed up... but today my friend pushed a stick in the pin and the hissing stopped. Can I prevent the leaking/hissing stop permanently? Thankyou.

[Magnus55]

I'm not sure I fully understand. So after you remove the tank from your gun the tank continues to hiss? Or the tank hisses when you remove it from your gun? It's normal for there to be co2 left over inside of the gun when you remove the tank, and that's the hissing sound you often times hear when you remove the tank from the asa (air source adapter). But if your tank it'self is hissing... then there is something wrong with it.

[Creek]

Well you never said if it was a new tank or a used one. But its the pin valve in side thats sticking. If you just got the tank take it back. If not replace the valve on it.
And if thats the case, you having to replace the valve get a on/off. most air smiths around here charge 5 bucks labor and what ever the valve cost.