Much faster progress needs to be made for water-metering.

Price is by far the biggest determinant for peoples behaviour. Witness the 90% drop in the use of plastic bags when one chain started charging 5p for plastic bags. It is absurd today that people have permanent watering systems in their garden, using expensively filtered and treated water. There is considerable water shortage in the South, which may get worse with global warming. Much unnecessary car-washing, and garden watering, and such-like would reduce with metering. This is all going very slowly, like most things in this country.

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