Soak Away Depth In A Garden.
In a garden situation soakaways need to be at a depth of 300mm.Soak away in our garden the pipes need to come into the soak away at the top of the soak away so the soak away acts as a collection point for the drainage water.Ideally the pipe and the soak away top should be 300 below the soils surface.With regards to the pipe you would normally have one main pipe leading into the soak away with other pipes branching off from the main pipe.