A friend of mine's 50+ year old brick house has a footing that is cracking off and shifting downward in places. It's a small, one story house. We had a very dry summer in Chicagoland and this might account for what happened. The cracks are narrower at the bottom and as wide as an inch toward the overhang. There is no basement, just a footing around the perimeter. Anyway, could this be repaired hydraulically somehow?