I saw a rain barrel collection setup last weekend at Indigo Green Store
that made me want to do one myself. Abundant Edible Landscapes
has installed a large drum and fitted it with a solar panel to power a small electric pump for irrigation. Fantastic! We're in Florida and there's lots of rainfall. Even so, the soil is sandy and not absorbant. It's also a good idea to utilize rainfall as a matter of principle, because it is a natural resource available to us. It also cuts down on water treatment and distribution, not to mention costs!