Family Handyman DIY Tip of the Day: Inexpensive Wet Basement Solution. Sloping the soil away from the house will take care of the problem most of the time. Firmly pack clay soil around the foundation, with at least a slope over the first 4 ft.
French Drain - Lay the drainage pipe in a fabric lining in the dug ditch. Place drain pipe atop fabric lining, then add gravel, covering pipe completely. Leave approximately between top of gravel and ground surface.