Understanding Key Drainage Components

Main Elements of Drainage in Commercial Premises


Commercial drainage systems are made up of multiple components, each with a clear function. Access junctions, access pipes, get more info anti-flood gullies and back traps all help in keeping the system functional and reliable over time.



Joining Multiple Lines


Access junctions link several pipes and create entry points for checks. Located at appropriate positions, they streamline fault finding and clearing 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 act as emergency points, reducing the chance of wastewater causing issues indoors.



Defending Against Flooding


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 damage. For businesses, this helps limit downtime.



Preventing Backflow


Back traps function 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 allow easy cleaning and maintenance.

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

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