I would love to see how you re-solder these tanks tubs. In particular the heat source, solder and flux you use and how you actually go about it.
I am attempting to repair broken solder joints on the tank brackets of an Elto G and as soon as the solder reaches meting temparature it just flows away. I don’t seem to be able to get the solder to flow on to bracket. Not sure if that’s because of contamination underneath the bracket or because its not hot enough for the solder to melt against it. And it’s already tinned!
The more I try, the bigger the problem becomes.
Very frustrating as I’m an electronics engineers with decades of soldering experience. I just don’t seem to be able to transfer those skills to tanks.
PS: sorry to change subject.
Regards,
Spiro