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 support in keeping the system functional and durable over time. Joining Multiple Lines Access junctions join several pipes and https://claychimneypots91233.thezenweb.com/h1-access-junctions-pipes-anti-flood-gullies-and-back-traps-explained-h1-75717613