On 07/07/2019 14:07, Peter Parry wrote:
On Sun, 7 Jul 2019 12:19:01 +0100, Gareth's was W7 now W10 Downstairs
Computer wrote:

Clearly, the nuts on the fittings need to be nipped up
again, but is the greenness indicative of a high rate of
corrosion in the system due to the salt, or is it just
a reaction to the air once it had seeped?

Water softeners do not introduce salt (NaCl) into the water pipework.

No, but what they do do over time is descale the pipes Allowing micro leaks




--
€œThe fundamental cause of the trouble in the modern world today is that
the stupid are cocksure while the intelligent are full of doubt."

- Bertrand Russell