Attended school with Jet truck to surveyed and clear 150mm earthenware sewer running beside the Sports Ovals.Used high pressure water jet to clear large volume of tree roots from main run between pits.  Pipe Hunter have previously quoted to reline works.  Refer to USB.Jet truck was used to clear extremely blocked and tree root infested 300-450mm concrete stormwater pipe between pits on same side of school beside sports ovals.Refer to USB.