We have a recurrent problem with braided gas lines from our high pressure resonator gas bottles. After a few months leaks turn up in the lines, especially when full bottles are installed. I spray down the lines with soapy water and find leaks. What make of lines do you find to be most reliable?
Have you tried etching with compressed shop air instead of pure O2? We had this problem and got great results with .2 bar shop air with appropriate etching power and feed for the material being etched. Pure O2 can burn too aggressively. We also run an etch line on the waste skeleton area of the...
