Confirmation of the reason for water charge

Gordon from Halswell

This is the section from the draft plan 23/24 and states
"A change to our Excess Water Supply Targeted Rate
The main reason we've introduced the Excess Water Supply Targeted Rate(external link) to help reduce the extreme demand on our water supply network at certain times, particularly over summer. If we can do this, it means we won't have to spend as much money upgrading and building new infrastructure to cope with the extreme demand".
It is not to save the overall usage of water for the rest of the year.
This is not to recoup the extra costs as the system can not pump more than 100%. The water pressure would drop and need restrictions that would apply to everyone, even without meters. Totally fair and very few costs involved, eg meter readings, sending out accounts, receiving payments, disputes over charges anon.
what was wrong with the old system and why was this raised at all?
The way I see it, they have just created a whole costly system to be paid for by the money they are collecting for the scheme. IMO