These lightweight PP modules are designed for assembling underground water storage tanks where individual component handling and flexible tank geometry are important. Each legacy module is listed at approximately 8 kg and 0.125 m³, allowing the structure to be built piece by piece inside the prepared excavation.
System role and suitable projects
The page focuses on handling and modular construction rather than a one-piece plastic tank. It is relevant to restricted-access sites, phased installations and projects that need storage dimensions adapted to available space.
- Restricted-access sites where large rigid tanks are difficult to position
- Landscape and commercial rainwater storage
- Phased or irregular underground tank layouts
- Non-potable water storage subject to suitable treatment and controls
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
Modules are assembled into the approved footprint, wrapped with the specified waterproofing system and connected to inlet, outlet, access and pumping components. The lightweight parts simplify handling, but the completed tank still requires engineered base, cover and load design.
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.