A gravity watering system can consist of a cistern to save roof top rain water and elevated tanks to gravity feed this water to your garden. As climate change makes rain less predictable, you can both water your garden and help save ground water.
Customer in Arkansas first to put an 84 RainSaucer on a 270 gallon IBC Tote. This setup is uphill from the home. She plans on feeding it to a small water tower near the garden for easy irrigation. - Gardening Go
If you're looking for a cost effective alternative to a below ground rainwater cistern, the Rainwater Pillow, which was on display at Greenbuild NEXT, may be your answer. Easy to locate under a deck or in a crawl
Using a rain barrel can save you a significant amount of money in a season. For each inch of rain that falls on 500 square feet of roof, you can collect 300 gallons of water to use in your garden, or your lawn. If we ever got rain.