The French Drain Is Layed

A French Drain is a trench filled with gravel or rock or containing perforated pipe that redirects surface water and groundwater away from an area.  French drains are primarily used to prevent ground and surface water from penetrating or damaging building foundations.  They are also used to distribute water such as a septic drain field at the outlet of a typical septic tank sewage treatment system.  George put in some French drains for these reasons.  They will protect water from damaging the garage and guesthouse once built and will aid with the septic field.  All in all a win win for moving ground and surface water.