Guide to Access Junctions, Pipes, Anti-Flood Gullies and Back Traps

Important Components in Commercial Drainage


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



Joining Multiple Lines


Access junctions link several pipes and create entry points for checks. Located at appropriate positions, they streamline fault finding and clearing blockages. Without them, upkeep in large 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 emergency points, 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 keep water flowing in the right direction, reducing the risk of flooding. For businesses, this helps keep operations safe.



Preventing Backflow


Back traps function as barriers to stop wastewater reversing back into the network. Placed in important positions, they help hygiene, limit odours, and avoid contamination inside commercial areas.



Frequently Asked Questions (FAQs)



  • What is the purpose of access junctions?
    They help locate and fix blockages quickly.

  • Why are access pipes fitted?
    They provide vertical access points.

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

  • What is a back trap?
    It ensures waste moves in one direction only.

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  • Are anti-flood gullies suitable for wet climates?
    Yes, they are designed for flood-prone conditions.



Final Notes


Drainage in business properties relies on a combination of components. Access junctions, access pipes, anti-flood gullies and back traps each maintain systems safe. Whether installing fresh systems, these parts reduce risk and safeguard property. For professional advice and products, get in touch with Knowles Drainage.

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