1 hour ago, scottishjohn said:

a very nice blue colour when the sun shines and so clear  and no weed I can see at all

That may well be a bad thing.

22 hours ago, Nickfromwales said:

Honest answer, No. You'd need to get a copy of the certification from the manufacturer, even more so if you deliver water to 3rd parties.

clarification from black pipe supplier 

yes it is suitable for potable water ,but it has to be WRAS approved to connect direct to water mains

 so for a private supply it is ok 

so blue 12.5 bar to tank from meter ,then from other side of tank in  pump house  black 16 bar , its then  my own supply ,maybe change it to blue 12.5 for the last 100m --just to stop any questions when BC man sees it at house end -

doubt he will want to walk down 450ft to look at other end  anyway .LO

Edited October 7, 20197 yr by scottishjohn