Changed gas, something is wrong

[Tatey]

Thanks for the info Talon. I took the welder apart last night to try and find out where the blockage was. First of all I tested the pressure of the gas from the reg feed tube against my cheek. Then took the torch apart and tested the torch feed (pre valve) against my cheek, this was pretty much the same. Then I tested it with the just the valve on and low and behold there is a massive difference, so much so you can barely feel it. I tried using a faulty valve to see if that would make any difference (it leaks as the valve wont shut properly) but that seemed to give out the same feed rate.

So I either have 2 blocked valves, or the valves are fine and it is giving me the flow rate I need. I will test my welder with a valve I have in a spare torch at home and see if that is any better. If it is not then I will buy a peashooter flow tester to see what flow is coming out before the welder and after to see if I can find the problem. I also have a complete torch/hose setup at home so I will try that out as well to see if that improves it.