Why should you water your foundation?
Because the soil underneath your home expands and contracts constantly every year. Most of the time it isn't enought to cause any severe damage to your home, but in drought like temperatures the lack of water can be hazardous to your foundation. As the soil gets extremely dry, it will contract and leave less support for you foundation and the weight of your home.
The best way to keep your soil moist is to use a soaker house and place it about 6 inches away from your home's foundation. Let it run long enough to not just soak the surface, but to penetrate enough to soak the soil well beneath the surface, keeping in mind that your foundation is about 2 feet deep.
While you may see a big increase in your monthly water bill, the cost to keep your foundation in tact is well worth the cost. Keep in mind that recently, a client of mine made an offer on a home and backed out after inspections revealed that the home needed $9,000 worth of foundation repair.
Chinowth & Cohen Realtors