What the Heck is Ice Pigging?

What the Heck is Ice Pigging?
The diagram shows how ice pigging effectively clears water and wastewater lines.

Traditional “pigging” involves sending a mechanical device — or pig — down a pipe to clean or inspect it. Its descendant, ice pigging, substitutes abrasive ice brine slurry for the mechanical pig, allowing it to scour the interiors of water and sewer pipes. 

The technique was...

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