Main Elements of Drainage in Commercial Premises Commercial drainage systems are made up of multiple components, each with a specific function. Access junctions, access pipes, anti-flood gullies and back traps all support in keeping the system efficient and durable over time. Linking Pipework Together Access junctions join several pipes and https://mushroom-hood-inserts76420.webbuzzfeed.com/37909083/h1-understanding-key-drainage-components-h1