In article ,
John Savage wrote:
First I've heard of copper dissolving in hot water. How long does it
take for the pipes to disappear?

No one knows; we throw out the HWS as soon as one tiny spot in the copper
coils corrodes all the way through. Wasteful innit?

But often caused by impurities in cheap tube?

--
*Honk if you love peace and quiet.

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