The first UV liner to be used vertically in New Zealand was a blend of technology, innovation, and the expertise of a skilled team.
Hayden from the BurrowTech team says a Brandenburger UV liner was used on a complicated manhole remediation job for Auckland City Council. UV liners dramatically reduce time and disruption on jobs; and wastewater, water supply pipes, or manholes (in this case) are good for up to another 100 years.
NZ Lining Director – Operations Manager Ammar Ahmed, and his team were responsible for the smooth delivery of the project. Ammar says despite multiple challenges the project went smoothly. He expects it to be the first of many using the BurrowTech-sourced technology.
Among hurdles to be overcome was water entering the manhole, at various points “like waterfalls”, Ammar says. This meant temporarily sealing off a number of outlets for services. The pipe also went from 1,050mm to 1,450mm which made the flexibility of the 1,400mm Brandenburger UV liner critical to the solution.
NZ Lining had been given UV training by specialists from German-based Brandenburger but added their own Kiwi “can-do” twist – adapting usually horizontal UV curing trains for the critical descent down the 4-metre-deep manhole in an industrial area. A second camera on the train ensured everything was thoroughly checked.
Once the manhole had been properly prepared, the lining itself took just 2 1/2 hours to install.
The company’s meticulous approach extended to independent testing of the liner used, which passed with flying colours.
Ammar said the company were definitely happy with the outcome.
