Polystorm modular geocellular structures can be used for the control and management of surface water. Polystorm is unique in that it has been designed to withstand vertical loads of up to 40 tonnes meaning it makes the perfect solution for attenuation or soakaway applications in light trafficked areas. Polystorm modular cells are assembled together to form a structure of any shape of size to hold water either from roofs, gutters or surface drains.
The modular structure can then be wrapped in an impermeable membrane (attenuation) or permeable membrane (infiltration) to control the surface water entering the tank. The Polystorm units are lightweight and easy to handle and have unique rounded corners to prevent punctures to the membrane during the installation process. With the use of a silt trap and Stormcheck Flow Control device, sediments can be removed before entering the tanks and then discharged at a set rate.
Polystorm can also be used in conjunction with Polystorm Lite and Polystorm Xtra to form a cost effective value engineered hybrid solution.
For more information please download the Polystorm Technical Manual.
Key Benefits
Load Capacity
Maximum 40 tonnes per square metre load bearing capacity for trafficked applications
95% void ratio
Providing greater water storage capacity and reduced excavation and disposal costs.
Modular units
Allow flexibility of shape – ideal for shallow excavation systems, narrow strips or use in restricted areas.
Lightweight yet robust
Excellent health and safety and installation benefits.
Cost effective
Especially when used as a hybrid, value engineered system.
BBA Approved
Tested in accordance with BBA Certification.
Technical Summary
| Unit Type |
Polystorm |
| Product Code |
PSM1* |
| Dimensions |
1m x 0.5m x 0.4m high |
| Total Volume |
0.2 m3 per cube |
| Unit Weight |
9kgs** |
| Cube Storage System |
0.19m (190 litres) |
| Surface area |
48% perforated |
| Compressive Strength |
Maximum 40 tonnes per sq metre |
| Maximum burial depth |
3.7 meters *** | |
* Each unit includes 4 clips and 2 shear connectors
** Pallet weight dependant upon order quantity and transport type
*** in weak clay the maximum burial depth will be reduced, please contact Technical Team for guidance