It shows you everything from building the platform to creating the actual rain barrel and hooking it up to your gutters. And it also gives great visuals to help you along with the process. So if you want to start small and inexpensive just to give rainwater harvesting a try then this might be a good option for you. 23 Awesome DIY Rainwater Harvesting Systems You Can Build Please note: You are currently browsing img saving water with attractive rain barrels ideas for your that is 768x1029px in size. This image is listed in decorative rain barrels garden category. 23 Awesome DIY Rainwater Harvesting Systems You Can Build, 768x1029 in 166.25 KB.