This looked like a good option in terms of cost and economics of labour. H owever I was researching something else in the pages here and came on a thr ead where there was a comment about mice eating plastic piping. Certainly they've had a good nibble at pipe insulation here, but are the pipes a real istic target too ?
OK I do need to set traps etc. each autumn - who doesn't in the country - a nd in general I'm not seeing any significant damage, but if there is any tr uth in this, then I will go back to using copper, and not take any risk.