#61519
kaindub
Flatchatter

    What you describe is a main water meter (existing) and then sub meters to each lot.

    Sydney water can manage this IF you can fit their meters to each lot.

    Alternatively you can have an embedded water network, where again meters are fitted to each  lot and the billing is done by an embedded operator.

    Nothing revolutionary here except in most multi level buildings, fitting any sort of meter is very expensive because  the plumbing was never designed to have a meter installed. ( The incoming lot pipes are generally buried within the building structure.)