Lets build a camelback,, or two.

[e-paw]

Thanks Sailormatlac.
Next the screws are removed and the holes filled with solder. This was also done one at a time just in case the iron loosened the seam while filling the holes.     Once that it's all filled run a file over the seam to smooth it out and clean off any excess solder.

Now just pull the sleeve off the dowel and your ready for boiler #2. This yields a pretty nice seam when complete, but still this will end up at the bottom of the boiler so any imperfections will not show.