Main Elements of Drainage in Commercial Premises Commercial drainage systems are made up of various components, each with a defined function. Access junctions, access pipes, anti-flood gullies and back traps all support in keeping the system functional and reliable over time. Connecting the Drainage Network Access junctions connect several pipes https://flue-liner20864.bloggip.com/37612581/h1-guide-to-access-junctions-pipes-anti-flood-gullies-and-back-traps-h1