400 mm vs 500 mm Tank Configuration Comparison

Compare whole-module quantity and nominal plan area within an available module-zone depth. The tool does not select a structural load grade.

Specifications

Required nominal storage, m³

Available module-zone depth, mm

500 mm configuration

1 layer fits

Whole modules: 85
Supplied storage: 20.188 m³
Nominal plan area: 42.50 m²

400 mm configuration

2 layers fit

Whole modules: 106
Supplied storage: 20.140 m³
Nominal plan area: 26.50 m²

Comparison boundary

Available module-zone depth excludes the base, cover and pavement build-up. Final selection still needs hydraulic, structural, access, groundwater and local approval checks.

Discuss both configurations →