Thanks to all who answered my house- watering question....even you smartalecks out there....it just so happens we live in an area of the great state of Texas where the soil,(called Black Gumbo)-is about two-thirds clay-and our houses shift a lot when rains come and go..... I plan to start a house-watering regimen and see for myself if it makes any difference....will report back to all interested parties. Thanks again, cat