In article ,
YAPH wrote:
It's interesting that some seem to have invented the everlasting
chemical reaction? Usually any residual corrosion caused by excess
flux will come to an end long before it eats through the pipe. Even
extremely corrosive active flux types only used on water pipes don't
seem to etch in very far if not wiped off. Over many many years.

Usually? Well that's OK then :-)

In any case But de Law is de Law. (As in de Law of de Land, not de Law of
Science).

Think 'the law' has proved it needs questioning on things technical. Many
many times. Too many axes being ground when forming such legislation and
politicians and civil servants too thick to know when the wool is being
pulled over their eyes.

--
*Hang in there, retirement is only thirty years away! *

Dave Plowman London SW
To e-mail, change noise into sound.