Thanks a lot guys for the info. I'll give it a good go with the mig...0.8 wire , with baffles, strengthening etc, I might cross press some of the panels for extra strength .Some good tips from you , many thanks ! Happy xmas and new year !!

Hi Guys Just joined and look forward to using this interesting forum. I am looking for some advice......I am building a mild steel (3mm thicknes) bunded fuel tank (diesel) and was wondering if mig was the best way to go ?? I have no tig welding experience! Our mig gas is a 20% mix (argonsteel 20)......