On tight urban sites, the only…
Underground
On tight urban sites, the only free space is underground. Our buried FRP tanks are assembled and tested above ground, then crane-lifted into a prepared pit and backfilled — preserving the landscape above while keeping a large fire or potable reserve below.
Drawings, load map and price within 24 hours.
Ideal for city-centre plots and sites where planning forbids above-ground structures.
Designed for backfill pressure and, where required, HS-20 vehicle loading.
Built and hydro-tested at ground level, then lifted into the pit.
Manway, vent and level access brought to a lockable cover at ground level.
Composite body is immune to groundwater corrosion.
Anchor design and ballast calculation supplied for high water-table sites.
Standard configuration shown. Every parameter can be adapted — tell us the duty and we will engineer to it.
| Parameter | Specification |
|---|---|
| Capacity range | 10 m³ – 500 m³ |
| Burial depth | 0.5 m – 3.0 m cover |
| Panel thickness | 8 – 20 mm |
| External stiffening | GRP ribs / galvanized frame |
| Load design | Backfill + hydrostatic (traffic optional) |
| Access | DN600 manway with cast-iron cover |
| Venting | DN100 vent with insect screen |
| Testing | Hydrostatic test before backfill |
| Backfill | Sand / lean concrete per specification |
| Warranty | 10 years structural |
Economical
Hot-dip galvanized ste…
Send us your capacity, dimensions or site drawings — our engineers will reply with a layout, load calculation and price within 24 hours.
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