If you have inspection chambers (manholes) in your garden, lift the cover and run water down the connecting downpipe. If the water level rises and stays high instead of draining away immediately, the blockage is between the chamber and the soakaway (or the soakaway itself).
Clogged soakaway? Start with a biological cleaner ($15 fix). If that fails, call for high-pressure jetting. Avoid caustic chemicals—they kill the good bacteria in your drainage field. Last resort: excavation. Prevention? No fats down sinks and monthly bio-dose. 🚿🔧 #DrainageFix #Soakaway #HomeMaintenance how to fix a blocked soakaway
How to avoid a blocked soakaway system - Drainage Superstore If you have inspection chambers (manholes) in your