On Tuesday, June 23, 2015 at 11:04:30 AM UTC-5, wrote:
On Mon, 22 Jun 2015 20:23:23 -0400, wrote:

On Mon, 22 Jun 2015 16:56:59 -0700 (PDT), stryped
wrote:

How did you solder it and with what? Does soldering not remove the galvanized coating?
Use a tinners iron - I have an electric one - the original "tinner's
iron" was heated with a blowtorch. Flux the galvanized and solder it
together - the zinc stays on the steel.

DON"T try soldering it with a torch. You WILL burn off the zinc, and
it will rust bedause you will overheat the joint.
I soldered mine with a torch and didn't burn off the zinc. I used
regular lead fee plumbing solder and paste flux. The solder melts at a
much lower than it takes to burn off the zinc. You need to keep the
flame moving. If you let it dwell it can then heat up a spot enough to
damage the zinc. There are available (at least there used to be)
soldering tips for a propane torch that fit over the torch head and
use a screw to hold them in place. One of these would work very well
for soldering galvanized sheet.
Eric

I assume a propane torch?

A soldering tip for a propane torch sounds like a great invention. I have never heard of one.