Rainwater harvesting is an efficient and economically method of collecting, diverting and storing rainwater for later use. There is a growing demand for the construction industry to provide reusable resources. In many cases, the reuse of rainwater can provide an economic benefit. Water reclamation should be considered in situations where runoff reduction desired and infiltration may not be feasible due to site constraints. Rainwater harvesting can reduce stormwater runoff from homes and businesses. In addition, it can solve drainage problems while providing free water for irrigation and other usage. ADS subsurface tanks stores water at a cooler temperature and reduces the chance of algae growth.