Important Parts of Commercial Drainage Systems Drainage systems in workplaces require a set of specialised features to manage flow effectively. Components such as access junctions, access pipes, anti-flood gullies and back traps help maintain reliability and long-term function. Joining Pipework Access junctions provide access for maintenance while linking multiple pipes. https://level-inverts05814.pointblog.net/h1-understanding-access-junctions-pipes-anti-flood-gullies-and-back-traps-h1-84626992