Planning to wash your car or water your garden tomorrow or
The Dunedin City Council is asking the public to reduce water
usage where possible on those days as it shuts down its main
city water supply to conduct repairs.
Gerard McCombie, water production manager, said as much
demand as possible would be transferred to the Southern Water
treatment plant, but many of the hill suburbs would rely on
the stored water in Mount Grand's treated water reservoirs
while the repairs were being done.
The council's planning indicated there would be sufficient
stored water, but it would be helpful if domestic consumers
conserved water to minimise the draw-down in the reservoirs,
to ensure a margin of safety to cover demand including
firefighting requirements, he said.
The council asked people to reduce water usage where
possible, such as putting off watering gardens or washing
cars until the weekend.
The shutdown is to enable repairs to be carried out on a
concrete structure that carries the main flow of water
through the middle of the plant.
The concrete on the structure had worn away, exposing some
steel reinforcing, and the council wanted to get it fixed
before the steel started corroding, Mr McCombie said.
It was unusual to close the plant for such a long period, but
the structure was not in an area that could be bypassed, he