Main Elements of Drainage in Commercial Premises Commercial drainage systems are made up of different components, each with a specific function. Access junctions, access pipes, anti-flood gullies and back traps all help in keeping the system operational and reliable over time. Connecting the Drainage Network Access junctions join several pipes https://drainagepipes86317.ampedpages.com/h1-understanding-key-drainage-components-h1-64377826