Concern over water plant
I write concerning the story (October 28) about the proposed Porirua wastewater plant upgrade.
What is being proposed will not work, because the plant cannot take more than 800 litres per second going through the milliscreens.
If this figure is exceeded, the plant goes into by-pass and the extra goes past the plant, down past the UV plant and into the sea at Old Mans Point.
This is untreated sewage. A new clarifier was added three years ago, and a fourth one will make no difference whatsoever.
What is urgently needed is more milliscreens to cope with the bigger inflows from a large population explosion.
Clarifiers only help to stop treated sewage discharges. Even heavy rain can put more than 800 litres per second through the plant, which happened quite frequently when I was there.