A High-Performance Solution for Sustainable Water Management
The Polystorm PSM1A 190L Soakaway Crate is engineered to manage excess rainwater efficiently, preventing waterlogging and potential flooding. Designed to absorb and disperse surface water, this crate is ideal for areas that experience heavy traffic or load. Its modular build allows for flexible installation, so you can easily configure it to meet site requirements. Made from 100% recyclable materials, the PSM1A is a SuDS-compliant choice for sustainable drainage.
Key Features of the Polystorm PSM1A
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High Compressive Strength: Supports up to 44 tonnes/m², making it suitable for high-load areas.
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Versatile Applications: Ideal for water retention, attenuation, and infiltration, especially when paired with a geomembrane or geotextile.
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Traffic-Ready: Designed to withstand loads in trafficked zones, making it perfect for car parks and commercial sites.
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BBA Certified: Quality assured by the British Board of Agrément.
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Visual and Maintenance Access: Can be accessed for inspection and maintenance with Polystorm Access & Inspect.
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Hybrid System Compatibility: Works with Polystorm Xtra and Lite for integrated system performance.
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Integrated Inlet and Outlet: Provides efficient water flow management.
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3D Flow Structure: Enables consistent water flow across the structure for optimised drainage.
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High Void Ratio: 95% void ratio maximises water capture.
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Recyclable: Made from 100% recyclable material.
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Long Lifespan: 50-year creep-limited life expectancy.
Applications for the PSM1A Crate
The PSM1A 190L Soakaway Crate is versatile, ideal for surface water retention, attenuation, and infiltration. Suitable for installation under loaded zones, including:
- Car parks
- Residential areas
- Commercial developments
Its modular design lets you construct a load-bearing tank of any shape or size, managing rainwater from gutter systems or drains and releasing it within a controlled discharge limit.
Benefits for Your Project
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Efficient Water Management: 3D flow structure and high void ratio support optimal drainage.
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Durable Design: High compressive strength and long life expectancy ensure a reliable solution for long-term projects.
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Sustainable: Constructed from recyclable materials and compliant with sustainable drainage standards (SuDS).
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Flexible Use: Suitable for various drainage applications, from retention to infiltration.
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Low Maintenance: Features inspection access for straightforward upkeep.
Technical Specifications
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Dimensions: 1000mm (L) x 500mm (W) x 400mm (H)
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Unit Weight: ~9kg
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Storage Volume: 0.19m³ (190 litres)
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Void Ratio: 95%
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Short-Term Compressive Strength:
- Vertical Max: 440kN/m²
- Lateral Max: 63kN/m²
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Deflection:
- Vertical: 83kN/m² per mm
- Lateral: 4.2kN/m² per mm
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Max Burial Depths:
- Light Trafficked: 3.7m
- Non-Trafficked: 3.8m
Note: Compressive strength values are based on specific site conditions as detailed in CIRIA C680 (2008).
Package and Quantity Options
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Crate Only or Crate with Geotextile Wrap
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Quantity Options: 1 Crate (190L), 3 Crates (570L), 6 Crates (1140L)
Installation Guide
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Site Preparation: Excavate and level the site; ensure dense sand and gravel conditions with no groundwater.
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Base Layer: Apply a geomembrane or geotextile to prevent soil ingress.
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Crate Assembly: Connect modular cells using clips and shear connectors.
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Placement: Align and secure crates in the excavation.
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Backfilling: Evenly backfill around crates with suitable material.
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Surface Layer: Lay a geomembrane or geotextile over the crates before applying soil, gravel, or pavement.
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Inspection: Perform a final check to confirm proper installation and functionality.
The Polystorm PSM1A offers a robust, sustainable, and adaptable solution for effective rainwater management, with simple installation and reliable long-term performance.
