Understanding Key Drainage Components

Main Elements of Drainage in Commercial Premises


Commercial drainage systems are made up of various components, each with a defined function. Access junctions, access pipes, anti-flood gullies and back traps all help in keeping the system efficient and robust over time.



Joining Multiple Lines


Access junctions link several pipes and provide entry points for inspections. Located at appropriate positions, they make easier fault finding and resolving blockages. Without them, upkeep in extensive networks would be time-consuming.



Providing Entry for Inspections


Access pipes are vertical installations that permit direct entry into the system. Installed at specific points, they allow professionals 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. Useful in areas with frequent heavy rain, they maintain water flowing in the right direction, minimising the risk of overflow. For businesses, this helps keep operations safe.



Preventing Backflow


Back traps function as barriers to stop wastewater reversing back into the network. Placed in key positions, they support 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 make clearing blockages more efficient.

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  • 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 designed for flood-prone conditions.



Key Details


Drainage in industrial properties relies on a series of components. Access junctions, access pipes, anti-flood gullies and back traps each support systems operational. Whether planning new systems, these parts reduce risk and secure property. For professional advice and products, get in touch with Knowles Drainage.

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