Originally Posted by Old Fool
A person could install a 12vdc solenoid valve
on the supply air to the tank. run a door bell wire up to the end of the hose and put a press button switch at the end or you could use a foot pedal
. Power the thing with a 12 volt motorcycle battery mounted on the tank. Simple cheap and easy.
How is that simple at all?
It's much simpler to use a valve at the end of the blasting end