I was working with a friend on 1" plate, 22 1/2 bevel, for a 45 joint, 3G vert up,1/4 gap, with 1/4 " backer strip, he has to use 115 to 130 amps DC+, with 7018 H4 rods. He runs in to arc blow frequently. We went to the lowest 115 amp setting, changed rod positioning, held tight to joint, wrapped cables to try offsetting magnetic field, reposition ground to begining, and end of joint, heavy tacks, and a couple other things. As is normal, it is normally just on the root, 2nd, and sometimes the 3rd pass, and in the upper 3rd of the plate. He been pointing rod up, about 20 to 30 degrees, but has also tried going straight in, when blow starts. All equipment connections good. I have tried things that helped me, but need other ideas. Thanks
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