![On the Beam](https://cole-mswmag.imgix.net/https%3A%2F%2Fwww.mswmag.com%2Fuploads%2Fimages%2F3_171031_135426.jpg?crop=focalpoint&fit=crop&fp-x=0.5&fp-y=0.5&h=620&ixlib=php-1.1.0&q=75&w=1024&s=80d3521e62f30865bb30f3fbe62f7f56)
Contractors and utilities are constantly on the lookout for alternative technologies that can help them avoid the expense and disruption of open-trench digging to repair or replace underground sewer or waterlines.
If the task is simply to repair and strengthen existing pipes, a...