The Natural Philosopher wrote:
On 16/07/14 05:29, F Murtz wrote:


The silver solder that plumbers use for copper pipe is usually only 2%
silver

Plumbers don't use silver solder for copper pipe.





It is extremely common in Australia and I can not believe that it is not
in UK by professionals.
There is a whole range of fittings made specifically for the purpose.
Home handymen have a different range of fittings with a band of soft
solder in them, professionals do sometimes soft solder when they can't
get their oxy near(or mapp gas in a pinch)