Ice pigging technology was developed in the United Kingdom in the early 2000s and was brought to Australia in 2011.
The technology utilises the unique properties of ice slurry to push accumulated sediments through a pipe to a collection point. Ice slurries are pumpable like a liquid and also have properties like a solid when confined within a pipe.
Unitywater engages a specialist company to clean mains using ice pigging. Ice pigging typically uses 50% less water than flushing and is more effective at removing sediments.
Pictured below are water samples before and after ice pigging.
Learn more in our ice pigging video.