DRAINAGE YOU
CAN TRUST
High-Performance GRC Surface Drainage
100% engineered, manufactured and stocked in New Zealand for local infrastructure needs.
I am building a…
The HYVOL Advantage
Short Lead Times
No waiting on international shipping containers. We manufacture locally, keeping major infrastructure projects on schedule with reliable, domestic supply chains.
Custom Engineering
Standard sizes don't fit your layout? Because our factory is right here in NZ, we can custom-design and manufacture bespoke widths, depths, or heavy-duty load configurations to order.
NZ Code Compliant
Formulated specifically to withstand New Zealand’s demanding geographic conditions, seismic variables, and strict regional council stormwater standards.
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Featured Products
200mm wide Class B Surface Water Channel Drain.
The "Light Commercial Standard".
The HY 200 B is a Glass Fibre Reinforced Concrete (GRC) channel drainage system designed for medium to large catchment areas in residential and light commercial zones. The integrated "Lugged Angle" anchoring system ensures the unit becomes a monolithic part of the concrete slab, providing superior stability compared to plastic alternatives.
Application: Wide driveways, light commercial car parks, and urban precincts.
Dimensions: 1000mm (L) x 200mm (W) x 200mm (H).
Catchment capacity / Flow Rate: 500m² / 13.5 Litres per second.
Load Class: AS/NZS 3996 Class B (80kN) / AS/NZS 1170 Type G.
Material: Grade 8 Glass-Fibre Reinforced Concrete (GRC) — Proudly Formulated and Cast In New Zealand.
Grate Design: 25mm x 5mm Load bars; 30mm center-to-center pitch.
Unit Mass: 28 kg
Direct-from-factory dispatch available nationwide. Custom sizing runs available upon request.
In line surface water sump.
The HYVOL in-line sump is a specialized drainage component installed directly within your channel run. It functions as a collection point that intercepts debris, sediment, and silt before they enter the main pipework, ensuring optimal high-flow water management and preventing system blockages.
Application: Residential, Commercial and Industrial
Dimensions: 500mm (L) x 200mm (W) x 500mm (H).
Catchment capacity: 20 litre
Load Class: AS/NZS 3996 Class B (80kN) / AS/NZS 1170 Type G.
Material: Grade 8 Glass-Fibre Reinforced Concrete (GRC) — Proudly Formulated and Cast In New Zealand.
Grate Design: 25mm x 5mm Load bars; 30mm center-to-center pitch.
Unit Mass: 25 kg
Direct-from-factory dispatch available nationwide. Custom sizing runs available upon request.
100mm in ground slot drain for pool and patios.
The HY100 SL is ideal for tiled areas with pedestrian foot traffic.
Application: Pools and patios
Dimensions: 995mm (L) x 100mm (dia) x 190mm (T)
Catchment capacity / Flow Rate: 159m2 / 3.7ls
Load Class: n/a
Material: Grade 8 Glass-Fibre Reinforced Concrete (GRC) — Proudly Formulated and Cast In New Zealand.
Grate Design: n/a
Unit Mass: 13 kg.
Direct-from-factory dispatch available nationwide. Custom sizing runs available upon request.
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