> For the replumb of the tap I'm intending to use plastic pipe/fittings
>> because of poor access to run the pipe, and because it seems more
>> resistant to freezing problems. Probably Speedfit, I'm not so enamoured
>> by the new Hep2O fittings, which is what i used in the old house. >>
>> I'm intending to use the same pipe for the run through the outbuilding
>> for a new tap as well. This will mostly be a straight run along the top
>> of the wall and down and the end.
>>
>> But which pipe - PE or PEX would be better for this?
>>
>I'd also like to know the pros and cons of the various types of
>plastic plumbing pipe available. I don't mean totally different
>types, I know what black/blue MDPE are for as opposed to what the
>above is asking about, I mean (as above) the differences between pipe
>for house plumbing - Barrier, non-barrier, different materials, etc. >
The barrier pipe stops oxygen from the air permeating through the pipe into the water - leading to a corrosion risk. Used for heating systems, where the same water is circulating round