GeoPipe Slotted HDPE Drainage Pipes

What is GeoPipe™?

GeoPipe™ is a high-performance slotted HDPE subsoil drainage system, engineered for controlled water collection and long-term durability in civil, road, and infrastructure applications.

Key engineered features include:

• Corrugated outer wall engineered for high ring stiffness and crush resistance under backfill and traffic loads

• Smooth inner bore to maximise hydraulic efficiency and maintain consistent flow capacity

• Precision-formed slots designed for optimal water entry while minimising soil ingress and clogging

GeoPipe™ is specified for subsoil drainage applications demanding long service life, consistent infiltration performance, and practical on-site handling in challenging ground conditions.

Technical note

Note: Our Slotted HDPE drainage pipes are typically used for subsoil, liner underdrain, and secondary drainage applications. Primary leachate collection headers are generally specified as solid-wall or fully perforated pipes, depending on hydraulic and regulatory requirements.

Optional Add-ons

• Geotextile-Socked Versions - For silt-heavy environments

• Joiners & Inspection Ports - For system integration

• Gravel Filter Bedding Design Support - On request

Supplying Across Africa - Without Compromise

GeoPipe™ is supplied and supported across Africa through established logistics corridors and regional delivery capability:

• Southern Africa - South Africa, Botswana, Namibia, Zimbabwe, Zambia

• East Africa - Kenya, Tanzania, Rwanda, Uganda

• West Africa - Ghana, Nigeria, Côte d’Ivoire

• Central Africa - DRC, Angola, Congo-Brazzaville

We support projects with reliable lead times, region-specific logistics planning, and on-the-ground execution, ensuring GeoPipe™ systems are delivered where and when infrastructure demands them.

Engineer’s Specification Note

GeoPipe™ slotted HDPE corrugated drainage pipes are specified for subsoil and backdrain applications requiring long service life, structural reliability, and controlled infiltration in civil and infrastructure works.

Engineered as a Complete Drainage System

GeoPipe™ integrates with geotextile filters, drainage aggregates, and liner systems to deliver reliable long-term subsurface drainage - not just water conveyance.

Applications

• Subsoil drainage for roads, highways & pavements
  (edge drains, formation drainage, pavement life extension)

• Retaining wall and MSE backdrain systems
  (hydrostatic pressure relief behind reinforced soil structures)

• Landfill subgrade and liner drainage layers
  (collection of infiltrating groundwater and leakage control beneath liner systems - not primary leachate headers)

• Landfill leachate drainage blankets (secondary drainage)
  (used within drainage layers in combination with aggregates and geotextiles)

• Mining tailings storage facilities (TSFs) - foundation & underdrain systems
  (pore pressure relief, seepage control, and foundation drainage where slotted pipes are specified)

• Mining platforms and industrial hardstands
  (groundwater interception below working surfaces)

• Agricultural and farmland drainage systems
  (field drainage and water table control)

• Golf courses, sports fields & landscaped areas
  (rapid subsurface drainage and surface performance protection)

• Foundations, basements & substructure drainage
  (perimeter drains and groundwater interception)