How Technology Works on Instagram: "Follow @howtechnologyworkss to learn how technology shapes our world, one post at a time Fixing old underground pipes used to mean tearing up roads, sidewalks, and buildings. It was slow, expensive, and highly disruptive. Today, plumbers and civil engineers use a method called trenchless technology to repair pipes that are decades old without ever digging them out of the ground. One of the most common trenchless methods is Cured In Place Pipe lining. The proce