How Gravity Sewer Works | Installing a 150mm PVC sewer main.

Ever wondered what actually goes into installing a sewer line underground? In this episode of Diesel & Dirt Downunder, we follow the complete installation of a 150mm PVC gravity sewer main from excavation through to backfilling. You'll see the machinery, materials and construction process involved in getting a new gravity sewer main into the ground — including how the pipe is installed, how the levels and grades are maintained, and how precast sewer manholes are incorporated into the system. 🚧 IN THIS VIDEO: • Excavation for the sewer main • Preparing the trench • Installing 150mm PVC gravity sewer pipe • Maintaining the correct fall and grade • Precast sewer manhole installation • Connecting the sewer system • Backfilling the trench • Final site cleanup • Drone footage & GoPro POV • Australian civil construction in action Gravity sewer might look simple from the surface, but getting the grade, levels and alignment right underground is critical. Unlike a pressure sewer, gravity sewer relies on the natural fall of the pipeline to transport wastewater — making accurate installation essential. This is another look behind the scenes at how the infrastructure underneath new developments is actually built. If you enjoy excavators, civil construction, earthmoving machinery and seeing how infrastructure is built from the ground up, make sure you subscribe to Diesel & Dirt Downunder. 👇 SUBSCRIBE FOR MORE AUSTRALIAN CIVIL CONSTRUCTION & HEAVY MACHINERY #DieselAndDirtDownunder #GravitySewer #civilconstruction #SewerInstallation #earthmoving #excavator #construction #infrastructure #pvc #AustralianConstruction #engineering #drainage #pipelaying #pipeline #plumbing #plumber #sewer #drainer #backhoe #heavymachinery #heavyequipment