Last summer was just brutal. Some of the foundations just could not endure without water. Remember the soaker hoses before it gets hot again. We wrote about it several times...here is one of the articles http://ezinearticles.com/?Prevent-Foundation-Repairs-With-the-Proper-Use-of-a-Soaker-Hose&id=6513967. Also, please don't put them too close to the house...this is what we found in a residence http://www.premierfoundationrepair.com/foundation/foundation-repair/