I am making a functional balloon water pipe. if at all possible a valve with an electric switch would be ideal so it could be activated from inside a balloon. the tubing will be inside the balloons so they can be pressurized around the tubes. after the tubing is filled with smoke it will be sealed off and the pressure from a balloon will be released forcing the smoke through the tubing inside the pipe. this is what the valve would be used for. a simple ball valve would work, but if there is an electric version small and cheap enough or an alternative im open to suggestions.
Gag, what a dumb concept - balloons break. All kinds of small valves are available for plastic tubing for use in medicine but turning on and off the pump is probably the cheapest. You need surgical rubber tubing to be soft and compressible which is probably going to be damaged by the smoke and how are you going to clean this thing?
