Topp has been manufacturing fiberglass basin products in Rochester, IN for over 20 years. They offer complete packaged lift stations with the piping and guide rail systems already installed. The stations are custom designed to fit your required depth and station diameter. The valves can be installed in a separate vault attached to the main structure (as shown here). Call L.W. Allen or go to www.toppindustries.com to learn more about the quality control and convenience of these pre-assembled systems.