Heavy rain often turns a beautiful backyard into a swampy mess that stays wet for days. When water has nowhere to go, it sits on the surface, creating mud pits and killing the grass. Most people look at their patio and see a solid surface, but they don't see the trouble it causes when the clouds open up. Hard surfaces like standard concrete act like a lid, preventing the earth from drinking and causing water to rush toward the foundation of the house. The problem gets worse w