Steve, as a lifetime yankee, I must say that I have never heard of watering your foundation. Up here we try to keep them and the basements they enclose as dry as possible. We go to great lengths with eves and gutters and grading to make sure that water runs away from the foundations. Please expound with a little of the rationale, and some details of how often and how much water. Can this be done with automatic systems, and are there construction alternatives to help conserve water ? What a wonderful varied country we live in !