Modular Drainage System
Trough & Stacker System
Two-component modular drainage combining exceptional hydraulic performance with 93% less embodied carbon than concrete.
System Design
How It Works
A two-component modular system engineered for exceptional drainage performance
Trough Channels, Stacker Filters
The system uses two interlocking components: Trough units (A or B) sit on the drainage ditch floor to channel water along to connected catch pits, while Stacker units are placed on top to filter surface water down into the trough below.
Made from 90% recycled content with zero virgin rubber, the open structure prevents clogging and maintains performance over decades without maintenance.
- Stackable units create custom depths and configurations
- Cut on-site to navigate any obstacle
- Modular units reduce installation time and site disruption
- Self-cleaning design with 30-45% void ratio
- Unaffected by oils, salts, and chemicals
Applications
Where It Works Best
Proven performance across diverse infrastructure environments
Highways & Motorways
DMRB compliant edge-of-carriageway drainage for strategic road networks
Rail Corridors
Network Rail accepted trackside drainage, fatigue tested to 506,000+ cycles
Cycle Paths & Walkways
Lightweight, shallow-depth drainage for shared-use paths and pedestrian routes
Parks & Green Spaces
SuDS-compliant attenuation for public open spaces and recreational areas
Residential Developments
Rapid-install drainage for housing estates with minimal disruption
Industrial Sites
Chemical-resistant drainage for depots, yards, and commercial developments
Installation
Simple, Rapid Deployment
Modular components reduce programme time and site disruption compared to traditional concrete systems
- Reduced plant requirements compared to concrete drainage
- Cut on-site with standard tools
- Modular stacking to any depth
- Can be left in-situ at end of service life
Technical Data
Specifications
Independently verified performance data for the Trough & Stacker system
| Stacker Units Length | 500mm (16.8kg), 1000mm (33.6kg), 2000mm (67.2kg) ±10mm |
| Trough A Units (Standard) | 1000mm (18.9kg), 2000mm (37.8kg) ±10mm |
| Trough B Units (Large) | 1000mm (33kg), 2000mm (66kg) ±10mm |
| Material Composition | 90% Recycled Content | Zero Virgin Rubber |
| Operating Temperature | -40°C to +80°C |
| Flow Rates Large Trough | 42.6 l/s @1 in 100 |
| Water Permeability | 49 l/m²/s |
| Avg. Void Ratio | 30-45% |
| Max System Depth | Unlimited (modular stacking) |
| Vertical Hydraulic Conductivity | 176.4 m/hr |
Independently Verified Performance
Accredited Testing
Full hydraulic validation
Network Rail Accepted
Trackside drainage approved
Highways Compliant
CD 529 & CD 530 standards
Ready to Revolutionise Your Drainage?
Our engineering team will design the optimal Trough & Stacker solution for your project.