I now live in Ireland just found out the hard way that Ireland have
different size pipe and fittings to England.
Everything is imperial over here so 15mm is 1/2" and 22mm is 3/4" and
because the mobile home I was working on comes from England its been
fitted with metric 22mm and 15mm pipe...
Reason I ask is I have a mobile home that have hep20 pipe and fittings on it and want to plumb in a washing machine in the shed and the only fittings I can get hold of is tectite