Over 15 years ago, I renovated the downstairs toilet cubicle and decided to bury the copper pipework within the wall. I cut out channels in the wall, IIRC without reaching getting to the depth of red-brick. I then plumbed in new 15mm pipes (hot and cold) to feed the sink and WC, before plastering ov er.
I'm just curious to know the kind of lifespan to be expected from burying p ipes in this way. Will the pipes begin to corrode/oxidise and eventually le ak ?
There's been damp on the external facing wall for a while in the cold feed area for the toilet. This seems to be getting worse lately. I reckon that t he cold water in the pipe might have cooled down that area and the resultin g condensation has slowly got worse over the years. Idon't think there's a leak; surely that would be far more apparent (?).
Any comments on this appreciated.
Thanks
c