470mm Inspection Chamber Base
The 470mm inspection chamber base is designed to form the foundation of larger underground drainage systems, providing reliable access for inspection, maintenance and cleaning. Its increased diameter makes it suitable for higher capacity drainage installations in both domestic and commercial environments.
Manufactured from strong and durable uPVC, this chamber base is built to withstand demanding underground conditions while maintaining long term performance. The design incorporates multiple inlet connections, allowing flexible pipe configurations and efficient integration into existing drainage systems.
470mm Inspection Chamber Base – Key Features & Benefits
- 470mm diameter chamber base for higher capacity drainage systems
- Multiple inlet connections for 110mm pipe compatibility
- Approx. 225mm invert depth to support effective flow
- Durable uPVC construction for strength and longevity
- Smooth internal channel design to reduce blockages
- Suitable for domestic and commercial drainage applications
Installer Benefits
- Lightweight construction for easier handling and positioning
- Push fit connections allow quick and secure installation
- Flexible inlet options simplify pipe layout on site
- Compatible with 470mm risers, covers and frames
- Reduces installation time compared to traditional manhole systems
Applications
- Domestic drainage systems
- Commercial and industrial drainage installations
- Foul and surface water drainage systems
- Inspection and maintenance access points
Performance & Durability
This inspection chamber base is designed for long term performance in underground environments. The uPVC material provides excellent resistance to moisture, chemicals and ground conditions, helping to ensure consistent operation over time.
The integrated channel design promotes smooth flow through the system, reducing the risk of debris build up and supporting efficient drainage performance.
Installation
The chamber base should be installed on a suitable prepared base in accordance with current drainage regulations. It connects to compatible 110mm underground drainage pipes using push fit joints. Additional risers, reducing rings and covers can be added to achieve the required depth and finished level.
Product Specifications
- Material: uPVC
- Chamber Diameter: 470mm
- Invert Depth: Approx. 225mm
- Pipe Compatibility: 110mm systems
- Application: Underground drainage
- Colour: Black





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