On Tuesday, 19 June 2018 17:30:16 UTC+1, Roger Mills wrote:
On 19/06/2018 14:01, Dave Plowman (News) wrote:
In ,
Roger wrote:
It's got more chance on old pipes than either solder or pushfit.

How you you work that out? Any old copper pipe can be cleaned to
perfection, and solder will fill any gaps. Obviously you have to make sure
there is no water in the pipe close to the end.


If you're making a joint on an *installed* pipe - as the OP is - it is
often difficult to get access to clean it completely, particularly if
it's got paint on it.

A compression joint with a smear of LS-X or - if you prefer - a wrap of
PTFE tape can cover a multitude of sins.

it can't cover many sins at all, there lies the problem. Compression & solder cover different sins, neither does them all.


NT