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  • About
    • GRAF Australia
      • Our Mission and Values
      • Our Team
      • Accessibility
    • Sustainability
    • GRAF Germany HQ
  • Products
    • Rainwater Solutions
    • Stormwater Solutions
    • Wastewater
    • Trade waste
    • Grease
    • Pump stations
    • Surface drainage
    • Pre treatment
    • Geotech solutions
    • Access covers & frames
  • Technical Solutions
    • Blogs
    • Video Gallery
    • FAQs
    • Case Studies
  • Resources
    • Downloads
    • Brochures
    • BIM Data
    • Certifications/Approvals
    • Dimension drawings
    • Installation instructions
    • Specification sheets
    • Standard details
  • Service/Install
    • Design
    • Supply
    • Commissioning
    • Maintenance
  • Design Tools
    • Hauraton
    • COSMA
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    Home Products Stormwater

    What is infiltration

    SMART Stormwater Infiltration by GRAF.

     So, what is stormwater infiltration?

    Stormwater infiltration refers to the process where rainwater (stormwater) is absorbed into the ground. It is, at its core, a natural process that helps replenish groundwater supplies and reduce the risk of flooding.
    In urban environments, many sealed, inorganic surfaces are introduced, preventing water from naturally being absorbed organically, as it is intended to. This puts heavy pressure on surface water systems like storm drains, rivers, or lakes and prevents water absorption to ground water, negatively affecting the natural environment.

    Stormwater infiltration systems are designed to capture stormwater and control its release back into ground water sources without overwhelming stormwater infrastructure, preventing flooding and erosion of surfaces such as concrete or bitumen. 

    EcoBloc SMART for stormwater infiltration.

    In an infiltration application, inlet pipes connected to the tank transport stormwater from any sealed surface such as a roof or a car park, to inside of the tank where the stormwater is stored temporarily and slowly released in the ground depending on infiltration rate of the soil, restoring the natural cycle of water.

    In an infiltration tank, after an excavation of the pit and compaction of the base, the installation team lay a geotextile layer and EcoBloc SMART base plates are assembled according to the design of the tank. Then, EcoBloc modules are clipped together to make sure every EcoBloc is secure, making the tank a strong structure, and end plates are connected to the lateral surfaces of the completed tank.

    The final steps are to wrap the geotextile all around the tank, certifying overlapping on the geotextile, to avoid any material from outside entering the inside of the tank, and backfill the laterals with appropriate backfilling material.


    EcoBloc SMART

    Australia’s only independently tested and certified modular stormwater system. 

    Our standard EcoBloc SMART modular system allows for large storage volumes requiring less space than traditional stormwater systems.

    About us

    GRAF Australia acknowledges the Traditional Owners of Country throughout Australia, and pay our respects to Elders past, present and emerging.

    GRAF International Headquarters

    Phone: +61 1300 131 971

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    43B Sparks Road (Rear Building)
    Henderson 6166 WA

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    WA 6965

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    Werribee South 3030 VIC
    Direct +61 8 6499 2624

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    Bells Creek 4551 QLD

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    26 Briens Road
    Northfield 5085 SA

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    650 Wallgrove Road
    Horsley Park 2175 NSW

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