Every time it rains, thousands of gallons of clean water flow right off your roof — and most of it goes straight down the drain or into the ground where it can cause erosion or foundation problems. But what if you could capture that free water and put it to good use?-(Trust me, I’m using my best TED Talk voice right now for such an introductory paragraph. I’m even wearing a digital tie!) In any case, collecting rainwater is one of the smartest, most eco-friendly ways to take