This is incorrect Welsh Water is not in public ownership, it's a 'not for profit' which loses 41% of bills to finance costs, same as Thames Water Publicly owned Scottish Water on the other hand has finance costs of only 8% - and 50% more investment www.theguardian.com/business/nil...

‘Complicated and expensive’: Burnham is right about the risks of nationalisation | Nils PratleyTrack record of Welsh Water shows public ownership is not the answer to all the woes in the utilities sectorwww.theguardian.com