With 44 tonnes/m² compressive strength, Polystorm is ideally suited surface water retentionsurface water attenuation or surface water infiltration as a soakaway solution at a variety of depths, under trafficked or loaded areas such as car parks and housing and commercial developments.


Features & Benefits


  • Compressive strength of 44 tonnes/m²
  • Ideal for retention, attenuation or soakaway applications with a suitable geomembrane or geotextile
  • Designed for trafficked and loaded conditions
  • BBA approved
  • Visual and maintenance access can be achieved when used in conjunction with Polystorm Access & Polystorm Inspect
  • Can be used as part of an intelligently engineered hybrid system with Polystorm Xtra and Polystorm Lite
  • Integrated inlet and outlet
  • 3D flow throughout the structure
  • 95% void ratio
  • 100% recyclable
  • 50 years creep limited life expectancy


       Polystorm Soakaway Attenuation Crates PSM1

Literature & Technical info