After several failed attempts with relining products, the city of Minden, Germany solved the problem of groundwater infiltration at lateral connections using Janssen Process. With the process, a fast-curing resin is pressure-injected to fill the gap between lateral and mainline, and any voids behind. The result is a sealed structural connection with a service life projected to exceed 50 years. By renovating just 6 laterals, the city was able to reduce volume at the neighboring pump station 65%.