So i have this idea off building a watergun/cannon from a scuba tank and a compressed air tank from a air compressor. The reason for this is that i have a carbon fibre scuba 5L tank that is pretty much expired, so you cant use that anymore for the 300bar/4500psi air. And i have a 25L air compressor tank. Now my toughts where if i make a new connector on the top of my scuba tank, with 2 ports on it. 1 with a pipe to the bottom of the tank and 1 that stops at the top. Then use the 1 that stops at the top of the scuba tank to connect to the 25L air compressor tank and the 1 with the pipe to the bottom connects to a hose with a valve in it and a nozzle on that.
But what do you guys think of this setup. I want to use it on a car for a crazy road rally kind of event, so weight is not really a problem for me.