Hot Water Cure in Seattle. A Seattle homeowner called us to take a look at an issue they were having with their 6” sewer line. They brought us in to reline 25 feet from the curb to the Seattle city main with the Perma-Lateral system with hot water cure. Hot water cure is used quite often in Seattle as it provides infinite working time, increases productivity and is user-friendly. If you live in the Seattle and have any questions about the Perma-Lateral system or hot water cure, please call us at any time.