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EZ Flow (Polystyrene)

A flexible, gravel-free alternative using synthetic aggregate bundles.

Synthetic Rock Bundles

Infiltrator's EZ Flow system consists of pipe surrounded by expanded polystyrene (EPS) aggregate bundles, held together by netting. This conventional septic option mimics the function of a rock trench but without the heavy hauling of stone. It's extremely flexible, making it great for curved trenches around trees or property lines.

EZ Flow Advantages

  • No gravel hauling required (clean installation)
  • Flexible bundles conform to curved trenches
  • Higher void space than natural stone
  • Usually qualifies for size reduction (varies by county)
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EZ Flow Bundle Diagram

Ideal for Remote Sites

Because the bundles are lightweight, EZ Flow is perfect for remote cabins or sites where dump trucks can't easily deliver heavy loads of rock.