Christchurch's water is going to be chlorinated, meaning all of the country's major cities now have chlorinated drinking water supplies.
The garden city's move comes less than two months after the damning results from an inquiry into our drinking water were released.
So why do we chlorinate our water, is it a controversial additive like fluoride, and what else do we need to know?
Noel Roberts, technical manager at Water New Zealand, a non-profit organisation focused on the water sector, has answers to the ins and outs of water chlorination.
View the article here.