On 18/07/2014 12:00, Dave Plowman (News) wrote:
In article ,
John Rumm wrote:
In Australia silver solder is specified in new buildings (units,
flats,domestic complexes, high rises, industrial) for copper pipe
(mostly 5% sometimes 2%

Can't think of any advantages, and plenty of disadvantages in its use
for this application. When copper pipes fail, it is almost never due to
solder failing in the fitting.

With a joint that was as strong as the tube, freezing would likely split
the tube. With soft solder, it may just 'pop' the joint making repairs
easier.


"May"? Not something I have ever seen.

I have seen split pipes and compression joint failures ones where a pipe
has been "pushed" out by expansion of ice. But no popped solder joints.