Hydrotrench® is manufactured in the UK from end-of-life rubber tyres, supporting environmental sustainability. The modular design, reduced trench size and high permeability of the system delivers a long-lasting solution for cycle paths, edges, landscapes, hard standings, paved areas and gardens.

The Hydrotrench® sustainable drainage system is supported by comprehensive technical specification documents, which include independently-verified hydraulic performance data and pipe size equivalents, which utilise the latest modelling software packages.

Features and benefits

Hydrotrench® has been designed to provide:

  • Long-lasting integrated drainage solutions

  • Reduced excavation, spoil management and carbon footprint benefits

  • Increased drainage connectivity, attenuation and climate change resilience options

  • Improved planning and construction approvals

  • Optimised land use, nature-based solutions, ecology preservation and Biodiversity Net Gains

How it works

  • Working back from outfall, a narrow trench network is excavated in the land and / or at edge lines to enable efficient installation of the system.  

  • To complete installation, the trench is backfilled with native soil and / or finished with a free-flowing material / surface.

  • Water immediately enters down and into the void space of low-pressure created by the system, which is entirely porous on all sides (unlike a perforated pipe or channel drain).

  • These unique properties invoke more responsive and persistent drainage flows, significantly increasing value engineering and design options for effective water management.sign

Build

  • Intercept and efficiently remove surface water within:
    - Constrained boundary lines / perimeters
    - Crests and embankment toes
    - Landscapes, public spaces and parks
    - Gardens, driveways, paved areas and edges
    - Pathways and verges

  • Scale-up drainage designs to address any size of catchment using the large range recycled tyre rubber drainage panels, troughs and slab unit options available.

  • Connections available in a range of sizes for silt traps, chambers and catch pits.

  • Fully compatible with geotextile materials, geocomposites, impermeable membranes, and other water / soil / erosion control materials - use standard practices.

Technical

  • Porosity / void ratio: 45% (average)

  • Water permeability: 49 l/m2/s

  • Predicted design Life: 60+ years
    Sufficiently durable in standard conditions and backfill when designed and installed as drainage parts

  • Resistance to chemicals: petrol, diesel, de-icer, salt - pass
    No visual surface change or deterioration was observed

  • Toxicology and environmental: heavy metals, PAH, environmental safety – pass

Accreditations

  • International standard ISO 9001

  • ASTM C642: porosity/void ratio

  • ASTM D4065: water temperature resistance

  • BS EN ISO 604: compressive strength

  • BS EN ISO 11058: water permeability

  • BS EN ISO 12958: in-plane water flow

  • DEF STAN 00-035 Part 3: chemical resistance

  • NF P90-112: toxicology