How to keep basements dry - Aside from being a nuisance, a house leak can cause substantial damage to framing, wall and floor finishes, and personal property, and can be the source of life-threatening toxic mold.
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.
Insulate Walls - Insulate exterior walls to prevent condensation. In cold climates, insulating basement walls also saves energy and reduces your heating bill. But don't cover the walls with insulation if water is leaking in from outside