Description
This 450mm catchpit chamber is designed to capture silt, debris and contaminants within drainage systems, reducing the risk of blockages and protecting downstream infrastructure. Commonly installed upstream of attenuation systems, soakaways and discharge points, catchpits play a critical role in long-term drainage performance.
The chamber is supplied as a factory-assembled unit, allowing for quick installation on site. A 300mm sump provides effective separation of solids from flowing water, ensuring debris settles at the base while clean water exits the system.
Catchpits are widely used in surface water drainage systems where sediment management is required to maintain system efficiency and reduce maintenance.
Key Features & Benefits
- 450mm diameter catchpit chamber
- 150mm twinwall inlet and outlet connections
- Integrated 300mm sump for silt and debris collection
- Multiple inlet configurations available (2, 3 or 4 connections)
- Supplied pre-assembled for fast installation
- Suitable for adoptable and non-adoptable drainage systems
- Compatible with common twinwall drainage systems
Applications
- Surface water drainage systems
- Commercial and residential developments
- Roads, yards and hardstanding areas
- Upstream of attenuation systems and soakaways
- Projects requiring sediment control and debris management
Catchpits are designed to collect debris before it enters the drainage network, helping prevent blockages and potential flooding issues.
Depth Options
Available in depths from 1.0m to 3.0m
Suitable for both shallow and deeper drainage installations depending on site requirements. Catchpit systems are typically available in multiple depth options to suit varying installations.
Configuration Options
Inlet positions and configurations can vary depending on project requirements. Standard configurations include:
- 2 inlet
- 3 inlet
- 4 inlet
Inlet positions can be configured to suit site layout and pipework design.
Standards & Compliance
- Building Regulations – Part H1
- EN 13598-2
- Sewers for Adoption (SfA7)
- Design & Construction Guidance (DCG)
- Suitable for both adoptable and non-adoptable drainage applications.
Delivery & Lead Time
- Typically dispatched within 3–5 working days
- Supplied as a complete unit ready for installation
- Delivered via pallet network
- Offload facilities required on site
- Diameter: 450mm
- Connections: 150mm Twinwall
- Sump Depth: 300mm
- Depth Range: 1.0m – 3.0m
- Typical Invert (1.5m): ~1200mm
450mm-catchpit-chamber-technical-drawing.pdf
Download technical drawing and specification sheet below. All catchpit chambers are manufactured in accordance with UK drainage standards and supplied ready for installation
