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

Essential Features for Business 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 support in keeping the system functional and reliable over time.



Joining Multiple Lines


Access junctions join several pipes and provide entry points for inspections. Located at appropriate positions, they streamline fault finding and clearing blockages. Without them, upkeep in complex networks would be difficult.



Keeping Access Simple


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



Flood Protection


Anti-flood gullies prevent surface water overwhelming drains. Practical in areas with frequent heavy rain, they maintain water flowing in the right direction, minimising 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 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 make clearing blockages more efficient.

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  • How do anti-flood gullies work?
    They stop flooding during heavy rainfall.

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

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



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, consult Knowles Drainage.

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