Spray-in-place is a method of trenchless pipeline rehabilitation. It involves the robotic spraying of durable material (usually epoxy) to create a new pipe within a pipe. The repair is meant to extend the life of the existing pipe and protect it against further deterioration.
Like cured-in-place pipe (CIPP), SIPP is a commonly used practice in trenchless operations.
Trenchlesspedia Explains Spray-in-Place
Decaying pipes are a growing problem throughout the U.S and other developed countries. Many of these pipes are more than 100-years-old.
Trenchless rehabilitation technology offers a simple solution that doesn’t require digging up and replacing infrastructure. Spray-in-place is one of several pipelining technologies available to give new life to old pipes.
Using robotic devices that make their way through a defective pipe (pigging), trenchless technology operators are able to spray a new pipe into place throughout the whole length of the pipe. The heads spin as they spray the material onto the original pipe surface. As the new interior pipe dries and hardens, it forms a new pipe that may be guaranteed by the installers for as much as fifty years.