Replacement - End of Life Surge Vessel at Te Kauwhata Pump Station.


MTL managed the replacement of a 5.5m3 surge vessel protecting the Te Kauwhata 450kW pumping station and 1.8km AC water main to the header tank. The station provides up to 22,900m3 per day of untreated water to the surrounding farming and residential areas.

Due to the essential nature of the service, the available outage window for the works could not exceed 6 hours. This tight timeframe represented the main challenge within the project.

MTL project managed the complete process, from the condition assessment of the existing plant, on to specifying and procuring the new equipment, coordinating installation and commissioning.


The new surge vessel was successfully installed and commissioned within the available timeframe of 6 hours, and the Certificate on Inspection readily issued.


JJ Niven Engineering Ltd.

“When we approached MTL, we were impressed with the professional commitment to achieve the 6 hour window. There was no ‘Plan B’. The open pro-active communication to co-ordinate all parties involved in the installation made a challenging project stress free.“ Andrew Cornwall, Executive Officer TKWA.