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

Essential Features for Business Drainage


Commercial drainage systems are made up of multiple components, each with website a specific function. Access junctions, access pipes, anti-flood gullies and back traps all assist in keeping the system efficient and durable over time.



Connecting the Drainage Network


Access junctions connect several pipes and create entry points for maintenance. Located at strategic positions, they streamline fault finding and clearing blockages. Without them, upkeep in complex networks would be time-consuming.



Keeping Access Simple


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



Flood Protection


Anti-flood gullies prevent surface water overwhelming drains. Useful in areas with frequent heavy rain, they ensure water flowing in the right direction, reducing the risk of flooding. For businesses, this helps limit downtime.



Maintaining Proper Flow


Back traps work as barriers to block wastewater reversing back into the network. Placed in critical positions, they maintain hygiene, control odours, and stop contamination inside commercial areas.



Frequently Asked Questions (FAQs)



  • What is the purpose of access junctions?
    They link multiple pipes and provide entry for inspections.

  • 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 prevents wastewater flowing back.

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



Final Notes


Drainage in business properties relies on a combination of components. Access junctions, access pipes, anti-flood gullies and back traps each help keep systems safe. Whether upgrading existing systems, these parts minimise risk and protect property. For professional advice and products, consult Knowles Drainage.

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