Can anyone please tell me what equipment is needed to weld aluminum irrigation pipe out in the field? I have a Miller 250 Bobcat and a Lincoln shorthood on my welding trailer. I was thinking I would need a suitcase welder. Is aluminum wire available for a suitcase, and is this where a spoolgun is used? I am familiar with mig welding (not aluminum) in the shop, but have not done anything but stick welding in the field. Also, the pipe is pretty thin, so what size wire should be used? Thanks