I'm having a problem with my mig welder......or its having a problem with my welding? Anyway, you know how your welds look when you forget to turn the shielding gas on. Its got that moon crater look. Tried switching 75/25 tanks and that didn't help. Tried increasing gas flow. Tried taking another tank and holding the open hose next to a weld and flooding it with 75/25. Listened to see if gas was flowing when I pressed the trigger. I could barely hear the gas noise, so I asked my wife to listen. She could hear it faintly. The guage does the little flicker when I start welding. Tried changing the regulator. The hose from the bottle to the machine flows good when disconnected. I'm going to try changing the wire spool later today and see if I have some bad wire. The wire was working okay before this started. If the wire doesn't fix it, about the only things left are the passage in the hose to the gun or the valve control in the machine. This is a high quality machine and is only a year old. Any suggestions on what the problem might be ? How loud is the gas noise when you start your welding gun.....normal or faint?