Enshrine ownership of water in the Constitution

As I see it, the troubling question of taxing water has three distinct parts.

The voting public have always paid for their water through general taxation so if there is to be a named new tax for water in isolation, then the portion of central taxation that goes to water currently must be returned to us.

Then there is a huge difference between capital costs and running costs. The updating of the network, piping etc, and the installation of meters, is a one-off capital cost that might attract EU structural grants in conjunction with a State loan of some kind.