Ice Pigging to Clean Water Mains
To maintain the quality of the water supply, we occasionally need to clean out water mains. Drinking water carries tiny amounts of natural sediment, which over years settle as deposits in water pipes.
In a process known as ice pigging, crews clean the water main by forcing an ice slurry through it. This is more effective and uses much less water than traditional cleaning techniques.
Ice pigging typically uses half the water of regular pipe flushing, and is many times more effective in removing sediment.
Find out more about ice pigging by watching this video.