Because Gravity Water systems have an operational lifespan of many decades, costs associated with developing a Clean Water System are substantially lower than other clean water projects. Over 95% of the costs associated with the Gravity Water system are one-time costs, making the program exponentially less in cost every subsequent year following installment. Generated revenue will grow exponentially yearly, given membership goals are continuously met, resulting in an exponential amount of people and communities that can attain access to a localized clean water source as the organization grows.
Many communities in developing nations around the world currently use water tanks to store ground or surface water, usually on rooftops, throughout the year. Since Gravity Water uses the same water tanks that are well known to these communities, integrating rainwater as the primary water source is much more culturally assimilative and adaptable, since it only introduces an augmentation in the process of accessing water instead of a brand new form of water supply.
The Gravity Water system is environmentally sustainable in two major ways. First, since the system focuses on catching rainwater, there is a reduced dependency on developing and altering natural water systems, such as rivers and springs, to provide water for human use. The amount of rainwater that is being captured is only generated for consumptive use. Water being taken out of the hydrological system is used with efficiency, reducing potential for waste.
Second, the Gravity Water system increases adaptive capacity to global climate change. Projected increases in precipitation over mid-latitude land masses and in wet tropical climates will increase erosion and surface runoff into water bodies, increasing the potential for pollutants to enter the system. However, this increase in precipitation will provide an increasing water resource through rainwater catchment as time goes on.
Gravity Water focuses on providing job opportunities and leadership roles for community members in developing nations. Each region that Gravity Water operates in is headed by local community members, providing job opportunities and decreasing the dependence on foreign operating personnel. This increases local empowerment and ownership of the program and eliminates potential issues of trust between developing communities and foreign interests.
Gravity Water provides a new approach to solving the global water crisis. With energy-independent filtration and storage, locally provided materials and management, adaptive capacity to climate change scenarios, and long-term economic sustainability, Gravity Water has the potential to successfully provide a long-term solution to clean water access for millions of people globally.