Hi ronnie, I've just finished my last job which was as a welder and have done some tig but not alot on ali but I'm willing to do it myself. What I want to know is how do you know what the ali make up of the sump is and then want type of ali rods do you use and want type of ali to use as the infill bit in the middle. Hope that is clear enough, hope you can help.
cheers
tony
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