http://www.articleheaven.net en-us editorial@articlealley.com Wastewater treatment systems will have a lot less water to treat if everyone has rainwater tanks. While country people have traditionally relied on water tanks for all their water needs, urban dwellers have not needed them. Using a rain water tank alone f... http://www.articleheaven.net/why-harvesting-rainwater-is-important-1780539.html 07th October 2010