I have a (htp) tig welder with water cooler I do a lot of aluminum welding and have a (k)tank 220 cu ft argon also a (s) tank 150 cu ft of stargon gauge set 20 cfm works out well for me. I use 2 percent laminated 3/32 and mostly 4043 rod. I had an opportunity to use a (primeweld) tig machine...