Prefabricated PE septic tanks for decentralized wastewater collection and primary treatment.
Stormwater and Environmental Products
Three related product families for decentralized sanitation, underground stormwater management and permeable paving. They remain separate from the four core pipe products.

Attenuation and infiltration crates for underground detention, storage and controlled release.
Permeable concrete pavers considered as part of the complete pavement and drainage build-up.

Prefabricated PE Septic Tanks
Corrosion-resistant prefabricated polyethylene tanks for decentralized wastewater collection and primary treatment. Nominal capacities include 0.5, 0.6, 1.0, 1.2, 1.5 and 2.0 cubic metres. Final configuration depends on capacity, connection layout, burial, groundwater and surface loading.
- Required capacity or estimated users and inflow
- Inlet, outlet and access-opening requirements
- Burial depth, groundwater and surface loading

Stormwater Attenuation and Infiltration Crates
Modular underground units for detention, attenuation, infiltration and controlled-release systems. Storage volume is only one input; loading, cover, groundwater, membrane and maintenance access also matter.
- Required storage volume and system function
- Cover depth, groundwater and traffic loading
- Geotextile, membrane, access and accessories

Permeable Concrete Pavers
Porous paving units that allow surface water to pass into the underlying drainage or infiltration layer. Selection is based on dimensions, loading, appearance and the full pavement build-up.
- Paver dimensions, colour and quantity
- Pedestrian, vehicle or other surface loading
- Base course, drainage and local performance requirements
Need a pipeline system?
Pressure and structured-wall pipes use a different selection path based on pressure or gravity duty and reinforcement structure.
