Wastewater upgrade underway in Mangakino

The Mangakino wastewater system is being upgraded with an extensive relining programme.

The relining involves inspecting the existing pipes and using robotic cutters to remove any sharp objects like roots before they are relined with an expanding polyvinyl chloride (PVC) pipe. Because the relining smooths over areas that previously would have caught items that had been flushed, it means blockages are greatly reduced. The relining also prevents water from heavy rain events seeping into the pipe system and inundating the wastewater treatment plant.

The PVC pipe has a rated life span much longer than previously used materials and the relining process is both faster than trenching and relaying pipes, as well as providing a 50 per cent cost saving.

Contractors are currently carrying out the initial inspections, with relining expected to begin on May 8. Some minor earthworks may be required for pipe junctions and the programme should be completed by October 2018.

May 4 2018

FOR FURTHER INFORMATION CONTACT:

Lisa Nairne Head of Communications and Customer Relations 07 376 0762 027 839 8410

Andy TaylorSenior Communications Advisor 07 376 0899 027 570 4651