by htg engineer »
Thu Jan 31, 2008 8:13 am
Unprotected copper pipes laid in concrete will fail.
It's inpossible to give a timescale of when it would fail, it depends on the quality of the pipes and the mixture used for the concrete.
So - You know they're unprotected - so you either leave alone, risk failure and possibly a flooded house.
Or
You replace the pipes with coated pipe then you know the job has been done properly. Peace of mind.