If you are going to weld stainless steel pipe you need rootgas (gas inside of the pipe) if you want a good looking weld on the inside that is. When using rootgas, backpurging what ever you want to call it you need to preeflow and postflow for awhile and during the welding obviously. How much and for...

Hello there. I only use pulse on the thin stuff and when welding on an egde or putting a cap on a pipe as it keeps you from melting the egde. Its a good tool to use but its not a substitute for skill. You can pretty much make a similar looking weld by dabbing your wire in the puddle faster. i dont u...