Main Elements of Drainage in Commercial Premises Commercial drainage systems are made up of multiple components, each with a defined 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://mushroom-hood-insert20752.fireblogz.com/68715074/h1-guide-to-access-junctions-pipes-anti-flood-gullies-and-back-traps-h1