Karangi closure 'minimal' effect
A KEY component of the Karangi Dam will be shut down temporarily from early March.
The lime and carbon dioxide dosing plant, which stabilises the raw water and helps protect pipelines and equipment, will be re-fitted with more efficient, modern equipment.
The shutdown will have a minimal effect on drinking water quality coming from the dam, which will continue to be safe for consumption, the executive manager of Coffs Harbour Water, Simon Thorn, said.
However, people with pet fish or pet shop owners may have to make adjustments to their usual water treatment because fish in aquariums are susceptible to changes in pH and alkalinity in water.
Similarly, domestic and public swimming pool owners and operators should test their pH and alkalinity levels.