Just to say new portamig 215 arrived yesterday - - what a stunning piece of kit. I had the same issue regards loose gas connection - used a bit of hemp string to pad it out so the nut binds up tight. Great machine and great service from weldequip. I had a SIP before and this gives you so much control. Once you set the machine is stays set - rocky steady feed - so looking forward to many hours welding rather trying to find the right setting.