Blocked: Soakaway

To avoid dealing with a blocked soakaway in the future, follow these prevention tips:

Stay dry and happy DIY-ing!

Direct Comparison: DIY Methods vs. Professional Intervention Remediation Strategy Best Suited For Cost Level Risk Factor Expected Success Rate Silt accumulation at the entry point Negligible High for entry blocks Chemical Additives Mild biological clogging / Biomat reduction High-Pressure Jetting Pipe blockages or soft silt buildup Low to Medium High for pipe issues Mechanical Root Cutting Heavy root infestation inside pipes High (Temporary fix) Total Excavation & Rebuild Structural collapse or soil compaction 100% (Permanent fix) soakaway blocked

The pit is filled with a porous medium, traditionally coarse stone aggregate, or modern plastic attenuation crates (often called soakaway crates).

Fit a silt trap or catchpit before the soakaway entrance to catch dirt, leaves, and grit before they reach the filtration crates. To avoid dealing with a blocked soakaway in

Squishy, muddy patches or standing water forming directly over or near the soakaway site during dry weather.

Tree and shrub roots seek moisture and nutrients, penetrating cracks in the soakaway chamber or perforated pipes. Roots expand over time, physically obstructing flow. Additionally, heavy vehicles passing over the soakaway area can compact the soil, collapsing the infiltration structure. Fit a silt trap or catchpit before the

Before calling in a professional, try these DIY solutions to unblock your soakaway:

[ Wastewater / Rainwater ] │ ▼ [ Drainage Pipes ] │ ▼ [ Perforated Distribution Pipes ] │ ▼ [ Geotextile Membrane Fabric ] │ ▼ [ Stone Aggregate / Crates ] ───► [ Surrounding Soil / Earth ]

If your soakaway is blocked, you may notice the following symptoms:

The water flows into perforated pipes embedded within an underground pit.