I have been thinking about the same thing, but from a different angle. I thought about using the can of compressed air, mounted in some type of housing that holds the nozzle open, pressurizing the spray line. Then install a solinoid vavle between the can nozzle and the discharge at the thruster. The solinoid could then be controlled open or closed from the gauntlets.
I will work on a little drawing, to help explain what I think I said. :facepalm But hopefully you get the jist.
Gator