How much pressure is in the 5lb CO2 tank when it's full? Duct tape probably wouldn't be strong enough. The canisters look aluminum, so welding would probably b

How much pressure is in the 5lb CO2 tank when it's full? Duct tape probably wouldn't be strong enough. The canisters look aluminum, so welding would probably be difficult - aluminum is supposedly very difficult to weld, and welding different types of metal is very difficult as well. The easiest way might be to put the canister's nozzle on a tube.