I continue welding using a stitch weld until a section is complete, then adjust the patch to that the seams meet all the way around.
The last few welds in this shot weren't great. I couldn't figure out what was going on as the welds seemed a bit more porous, it just didn't want to weld. Then I remembered something, checked it and sure enough I was out of shielding gas.
I'm not sure if I'll leave these or cut them out and weld them again. (Sorry, not a great shot)
Since I still had some daylight and would have to wait a day until the gas supply shop would open, I ground down the rest of the welds to inspect and get it ready for seam sealer.
To clarify, I'm not grinding these welds flush. I leave a bit proud of the surface so to avoid accidentally grinding the metal on each side. The weld bead is already the strongest part of the floor and I don't want to make the sections of the floor next to the seam any thinner. Seam sealer will smooth the transition enough as will the paint I'll apply over that. So I'm not worried about water getting trapped in the corners.
