With more people looking to save energy and the increasing cost of water in many communities, the idea of recycling rain water gaining more demand. This is a great way to water outside with little cost and even non potable water uses in the home can be supplied with rain water. One issue is the local codes within some communities. Some municipalities will not allow of catching rain water so be sure to check with your local building department prior to installing a rain catching system.
One company that has developed an excellent system for rain catching is called RainEscape™.
Read more at http://greenbuildingideas.info/catching-rain-water/