I recently built a home on a lake in North Georgia/South Carolina Border. I have a damp crawl space that does not seem to dry ever. My builder put down plastic in floor. The result seemed to be water evaporating into the insulation on underside of floor above and then percipitation back to the plastic. I had standing water on the plastic at all times. I removed the plastic and there seems to be less condensation in the insulation above. There is a hill behind my home (Sumter National Forest). I instlled a French drain around back of house and that has helped but I still can not get a dry basement. The basement floor is 6 inches below the outside yard level. I have complete gutters around house. I am considering a dehumdifier but would prefer not to depend on that. Any ideas?