Thanks for the response, Steve. So it must be me just having an off day?

Does a gas mix like C-75 which is 75% Argon and 25% CO2 separate in long-term storage? I have a large gas bottle that lasts a year or two and on days when I think I don't really know how to weld, I wonder if something has changed the gas mixture so I get straigt Argon? What do y'all say??

Does a gas mix like C-75 which is 75% Argon and 25% CO2 separate in long-term storage? I have a large gas bottle that lasts a year or two and on days when I think I don't really know how to weld, I wonder if something has changed the gas mixture so I get straigt Argon? What do y'all say??

Thanks for the help.

I seem to have forgotten how to TIG weld. I'm not sure what kind of steel I'm welding on, but I can get a puddle going pretty good for about 1/2 an inch, and then the puddle bubbles and spits, etc. I noticed that my gas lens collet was dirty, so I went to change it. I only have a 3/32 non gas lens c...