Important Parts of Commercial Drainage Systems Drainage systems in business properties require a set of specific features to manage flow effectively. Components such as access junctions, access pipes, anti-flood gullies and back traps ensure reliability and long-term function. Joining Pipework Access junctions provide access for maintenance while linking multiple pipes. https://mariotvtsp.blogoscience.com/43951834/h1-access-junctions-pipes-anti-flood-gullies-and-back-traps-overview-h1