Prices vary by region, access, and soil type. Soakaway showing failure signs? │ ▼ Is water level dropping within 48h? │ │ YES NO │ │ Check inlet ▶ Is soil percolation >15mm/hr? pipe for block │ │ (rod/jet) YES NO │ │ │ │ ▼ ▼ └──► Fixed? Clean out Soil unsuitable. If no ───► Replace Install attenuation percolation tank or mound system. test fails. Final Takeaway A failed soakaway rarely fixes itself. The longer you wait, the worse the damage – both to the environment and your wallet. Start with a percolation test and CCTV survey , then choose the simplest repair that matches the root cause. For septic systems, always involve a certified environmental health contractor.