I suspect they're not in the least ineffectual. Probably all bought stock in solder manufacturers and in silver and copper mines as soon as they realised what was happening.
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13 years ago
Leaded solder.
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13 years ago
I tried to use one of those double-jawed 22mm pipe soldering irons to fix a leaking pipe the plumber had dutifully soldered with lead-free.
The iron didn't get hot enough to melt the lead-free solder, and I had to use a blowtorch with a steak pie tin lid behind the pipe to deflect the flame from the wooden cistern support.
That worked. And I used leaded solder as insurance against future issues of the same sort.