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 assist in keeping the system operational and robust over time. Connecting the Drainage Network Access junctions connect several pipes https://levelinverts54318.bloggactif.com/38905453/h1-guide-to-access-junctions-pipes-anti-flood-gullies-and-back-traps-h1