Main Elements of Drainage in Commercial Premises

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

Connecting the Drainage Network

Access junctions connect several pipes and create entry points for maintenance. Located at planned positions, they make easier fault finding and removing blockages. Without them, upkeep in extensive networks would be time-consuming.

Providing Entry for Inspections

Access pipes are vertical pipes that allow direct entry into the system. Installed at set 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 block surface water overwhelming drains. Practical in areas with frequent heavy rain, they maintain water flowing in the right direction, avoiding the risk of damage. For businesses, this helps limit downtime.

Keeping Wastewater Moving Correctly

Back traps work as barriers to block wastewater reversing back into the network. Placed in critical 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.

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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.


• What is a back trap?
  It prevents wastewater flowing back.

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• Are anti-flood gullies suitable for wet climates?
  Yes, they are effective where heavy rainfall occurs.

Final Notes

Drainage in business properties relies on a set of components. Access junctions, access pipes, anti-flood gullies and back traps each support systems operational. Whether installing fresh systems, these parts reduce risk and safeguard property. For professional advice and products, contact Knowles Drainage.