Agricultural Drainage Pipe 100mm × 20m — Retaining Wall Toe Drain

100mm diameter agricultural drainage pipe for retaining wall toe drainage. Runs along the base of the wall to collect and redirect water away from the structure, preventing hydrostatic pressure build-up. Essential for any retaining wall exceeding 600mm in height.

• 100mm diameter × 20m coil per unit
• Slotted (no sock): use when wrapped in geofabric matting or surrounded by clean gravel
• Socketed (with filter sock): pre-wrapped filter fabric prevents fines entry — ideal for sandy or loamy soils
• Flexible HDPE construction for easy installation around corners
• Compliant with AS 4678:2002 drainage requirements

Recommended system: Geofabric matting behind wall → clean drainage aggregate → ag pipe at footing level → discharge to daylight or stormwater.