What is a curtain drain?
A curtain drain is not common in this area. It is similar to an agricultural field drain. It is constructed above the seepage field to intercept the groundwater moving laterally through the soil. It should be approximately SIX inches deeper than the seepage field and filled to within two to six inches of the surface with gravel. The downspouts and sump pumps can be hooked into this line if it is properly located.
