It's hard to explain cure in place pipelining — it's equally hard to get good pictures to help. That being said, here is an example. This existing sewer line is cast-iron. Cast iron eventually corrodes shut or away, and in many cases both. We found this line in very poor shape because of a service call for a backed-up sewer.
If you look through the pictures, you can see the progression: televising, cleaning the existing sewer line, then excavating just outside the home to gain access. We then inserted a liner inside the old sewer line. This saved a lot of money for this particular customer compared to traditional excavating — it saved us from having to cut up the sidewalk and the main road in front of the home. Now they have a brand-new pipe inside the old. The picture with the green colored pipe is the cured liner once done. This customer will not have any more problems with roots or collapsing in their sewer line.
