Out of interest, why replace copper with UPVC?
not upvc, but:
http://en.wikipedia.org/wiki/Cross-linked_polyethylene
It's flexible so you can make it up using fewer joints, which is a massively good thing but if the copper doesn't need replacing, it's pointless.
@sausagefingers started
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not upvc, but:
http://en.wikipedia.org/wiki/Cross-linked_polyethylene
It's flexible so you can make it up using fewer joints, which is a massively good thing but if the copper doesn't need replacing, it's pointless.