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 multiple components, each with a clear function. Access junctions, access pipes, anti-flood gullies and back traps all assist in keeping the system operational and robust over time.

Linking Pipework Together

Access junctions join several pipes and create entry points for maintenance. Located at appropriate positions, they streamline fault finding and removing blockages. Without them, upkeep in extensive networks would be difficult.

Making Maintenance Straightforward

Access pipes are vertical installations that enable 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 overflow outlets, reducing the chance of wastewater causing issues indoors.

Keeping Water Under Control

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

Keeping Wastewater Moving Correctly

Back traps work as barriers to stop wastewater reversing back into the network. Placed in key positions, they help 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.

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


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

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

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• 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 maintain systems safe. Whether upgrading existing systems, these parts limit risk and protect property. For professional advice and products, consult Knowles Drainage.