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 help in keeping the system efficient and robust over time. Joining Multiple Lines Access junctions join several pipes and https://alexiscgfee.bloggazzo.com/36382502/h1-access-junctions-pipes-anti-flood-gullies-and-back-traps-explained-h1