This underground rainwater filtration and storage system combines upstream water-quality controls with a modular PP tank. Screens, silt traps or filter chambers are selected to protect the buried storage from debris carried by roof or paved-area runoff.
System role and suitable projects
The page focuses on the filtration-to-storage sequence. Filtration requirements depend on catchment contamination, intended water use, maintenance capability and local regulations.
- Commercial roof runoff collection
- Landscape irrigation storage
- Paved-area collection with sediment pre-treatment
- Systems requiring accessible filter maintenance
Module specifications
The following values are the legacy product specifications for this module. Structural capacity, cover depth, traffic loading and applicable test requirements must be checked for the actual project design.
| Type | Rainwater Collecting Modular |
| Place of Origin | Fujian China(Mainland) |
| Brand Name | LEIYUAN |
| Material: | PP |
| Color: | Black |
| Dimension | 680 L*410 W*450Hmm |
| Total Volume: | 0.125m3 |
| Tank per m3 | 8 |
| Weight: | 8kg/module |
| Working Temperature: | From -30℃ to +120 ℃ |
| Pressure Strength: | 25tons/sqm |
| HS Code: | 3925900 |
| Certificate: | ISO9001:2008 |
How the modular tank works
Runoff passes through project-specific screening and sediment control before entering the underground tank. Inspection access allows filters and catch pits to be cleaned, while pumps, overflow and treatment are added according to the intended use.
Installation planning
- Confirm runoff volume, design storm, inflow and discharge requirements.
- Check excavation, groundwater, soil bearing conditions and required cover depth.
- Prepare a level base and assemble modules according to the approved layout.
- Wrap the structure with the specified geotextile and/or waterproof membrane.
- Connect inlet, outlet, ventilation, inspection and overflow components.
- Backfill in controlled layers and commission the system before operation.
Packing and project support
| Detail: | Size | Packing |
| 680x410mm | 8pcs/bundle | |
| 450x410mm | 10pcs/bundle | |
| Shipping: | 90 Cubic Meter for 1X20′ GP(By bundle) |
Module quantities and container loading should be confirmed from the final tank geometry and current packing plan. Leiyuan can review project volume, module layout and shipping requirements for professional buyers.
Information required for a quotation
Send the project location, required storage volume, application, installation depth, surface load, groundwater level, drawings and delivery destination. This allows the module and system build-up to be checked before quotation.