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 function. Access junctions, access pipes, anti-flood gullies and back traps all help in keeping the system efficient and durable 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 clearing blockages. Without them, upkeep in large networks would be labour-intensive.



Making Maintenance Straightforward


Access pipes are vertical installations that permit direct entry into the system. Installed at specific points, they help to clear obstructions and carry out routine checks. They can also serve as emergency points, reducing the chance of wastewater causing issues indoors.



Keeping Water Under Control


Anti-flood gullies block surface water overwhelming drains. Practical in areas with frequent heavy rain, they keep water flowing in the right direction, avoiding the risk of damage. For businesses, this helps protect property.



Keeping Wastewater Moving Correctly


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



Frequently Asked Questions (FAQs)



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

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

  • How do anti-flood gullies work?
    They keep drains flowing without backflow.

  • What is a back trap?
    It helps maintain hygiene by stopping reverse flow.

  • Are anti-flood gullies suitable for wet climates?
    Yes, they are ideal in rainy areas.



Key Details


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

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