The Big Dig

Here is a good example of the type of excavation required for an on-site downspout drain system. The actual hole - the energy dissipation basin or "French drain" - must be at least 8' away from the foundation and the trench for the drain line must slope down and away from the house.

Once the filter cloth, gravel and drain tile is installed, the sod can be re-installed on a layer of filter cloth.

Drain excavation
Drain excavation