I am trying to figure out what to use for a gas valve on my little miller inverter cst280. I have had it for about a year now, and I just emptied my third bottle of argon to atmosphere because I was stupid enough to forget to turn off the valve on the tig torch head... My question: is there an output on the 14 pin connector that I could rig a solenoid valve to to turn my gas on and off? I realize that I would have no post flow gas, but I think that I can use a timed relay for that. Any suggestions would be appreciated. Thanks.