Palmerston North residents sometimes experience discoloured water coming out of taps. This is for two reasons: the slightly high iron and manganese content in our water, and the city's aging water main infrastructure, which retains the built-up sediment in the pipes.
We're fighting the problem on a number of fronts.
In 2007 we built a swabbing station. It allows Council staff to run a big sponge through the trunk water supply pipes to clean them out. This process is called swabbing and usually occurs in winter every year as that is when the Manawatū River is in high flow. Council endeavours to advertise swabbing to residents as it can sometimes cause mild discolouration, however in recent years this has not occurred.
The old cast iron pipes in the water main network are being replaced with plastic ones. To date, January 2014, over 22 kilometres of pipes have been replaced at a cost of $9 million.
If your water is discoloured
Leave the cold tap running for 15 minutes to see if the water runs clear. If not then call us on 06 356 8199 and we will flush the pipes around your property.