@blueyes we are alike! I need pictorials, guides and simple language when i build. I do well and learn aling the way. I am also Queen of Do-Overs. I'm going with a Diverter from Amazon. We will continue to use our downspout for the run off. We get such torrential rains here in Houston. I bet a good rainstorm could fill up 100 gallons in 15 mins! Here are my plans. 42 pictures plus a blog that tweeks it. I posted it somewhere at ATP before. I liked it as soon as i saw it!
http://m.instructables.com/id/...