Wow.......I have been welding for years with my Hobart 140 and have gotten fairly good at it until recently.... my welds are terrible now for some reason. 90 percent of the time I get these "growing fingers" in the weld which is a hollow bubble forming in the weld. I have tried everything possible but cannot get rid of them. I am at my witts end and don't know what to do.
what to do.