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 help in keeping the system operational and robust over time. Joining Multiple Lines Access junctions join several pipes and https://claychimneypots68890.dgbloggers.com/37997275/h1-understanding-key-drainage-components-h1