Porirua installs the first earthquake safety valves in New Zealand
Environmental portrait of Mayor Nick Leggett with an articulated valve at the Porirua High Level reservoir. Friday May 4, 2012
This is a new type of protection for the cities water supply spurned on by the Christchurch earthquakes. Like a ball joint in a 4WD car, these joints allow for movement between the reservoir and the water pipeline, both of which remain inflexible.
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