http://www.articleheaven.net en-us editorial@articlealley.com Rain water tanks are real boon to mankind. It is a dual blessing for nature and man as it works to the benefit of both. In a time where we have to preserve every possible resource, rain water tanks do just that. Before considering the size and type of rai... http://www.articleheaven.net/how-rain-water-tanks-work-1277083.html 07th December 2009