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

Main Elements of Drainage in Commercial Premises


Commercial drainage systems are made up of various components, each with a specific function. Access junctions, access pipes, anti-flood gullies and click here back traps all support in keeping the system operational and durable over time.



Connecting the Drainage Network


Access junctions connect several pipes and offer entry points for checks. Located at appropriate positions, they streamline fault finding and removing blockages. Without them, upkeep in large networks would be time-consuming.



Providing Entry for Inspections


Access pipes are vertical pipes that allow direct entry into the system. Installed at regular points, they allow professionals to clear obstructions and carry out routine checks. They can also serve as safety valves, reducing the chance of wastewater causing issues indoors.



Defending Against Flooding


Anti-flood gullies prevent surface water overwhelming drains. Practical in areas with frequent heavy rain, they keep water flowing in the right direction, avoiding the risk of flooding. For businesses, this helps keep operations safe.



Preventing Backflow


Back traps function 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.

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

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

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

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



Key Details


Drainage in commercial properties relies on a combination of components. Access junctions, access pipes, anti-flood gullies and back traps each help keep systems efficient. Whether planning new systems, these parts reduce risk and safeguard property. For professional advice and products, contact Knowles Drainage.

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