Access Junctions, Pipes, Anti-Flood Gullies and Back Traps Explained

Main Elements of Drainage in Commercial Premises


Commercial drainage systems are made up of different components, each with a defined function. Access junctions, access pipes, anti-flood gullies and check here back traps all help in keeping the system functional and reliable over time.



Linking Pipework Together


Access junctions join several pipes and provide entry points for inspections. Located at strategic positions, they simplify fault finding and removing blockages. Without them, upkeep in extensive networks would be labour-intensive.



Providing Entry for Inspections


Access pipes are vertical pipes that enable direct entry into the system. Installed at set points, they make it easier to deal with obstructions and carry out routine checks. They can also act as overflow outlets, reducing the chance of wastewater causing issues indoors.



Keeping Water Under Control


Anti-flood gullies block surface water overwhelming drains. Effective in areas with frequent heavy rain, they ensure water flowing in the right direction, reducing the risk of overflow. For businesses, this helps keep operations safe.



Preventing Backflow


Back traps act as barriers to prevent wastewater reversing back into the network. Placed in critical positions, they maintain hygiene, reduce odours, and prevent contamination inside commercial areas.



Frequently Asked Questions (FAQs)



  • What is the purpose of access junctions?
    They allow easy cleaning and maintenance.

  • Access Junctions
  • Why are access pipes fitted?
    They allow straightforward inspections.

  • Anti flood gully
  • How do anti-flood gullies work?
    They prevent surface water entering the system.

  • What is a back trap?
    It prevents wastewater flowing back.

  • Are anti-flood gullies suitable for wet climates?
    Yes, they are effective where heavy rainfall occurs.



Key Details


Drainage in industrial properties relies on a series of components. Access junctions, access pipes, anti-flood gullies and back traps each maintain systems safe. Whether upgrading existing systems, these parts minimise risk and secure property. For professional advice and products, get in touch with Knowles Drainage.

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