The Nu Drain pull-in-place system for small diameters from Nu Flow Technologies creates a protective, structural pipe inside an existing host piping system without the need for digging or destruction. The system can line inside infrastructure and underground pipe by using a liner saturated with resin to create a barrier that can span missing sections of pipe. It can be used to rehabilitate deteriorating sanitary drain and storm sewer lines, including mechanical systems, with minimal disruption. The technology is best suited for pipe 1 1/2 inches in diameter and up, and can accommodate multiple 90-degree elbows in one installation. It can be installed through one or two access points, and allows the installer to start and stop anywhere without over or under shooting. It can also be used as a preventive measure against future cracks and intrusions. 905/433-5510; www.nuflowtech.com.