How to Build a Rainwater Collection System Apr 5, 2008 23:06:53 GMT -5 Quote Select PostDeselect PostLink to PostMemberGive GiftBack to Top Post by Jinsei on Apr 5, 2008 23:06:53 GMT -5 This is on WikiHow. I'm planning to build a system similar to this at the ranch, but on a much larger scale. Still, this lists the basics to get you started on building one of your own.www.wikihow.com/Build-a-Rainwater-Collection-System