Our proposal addresses the growing scarcity of drinking water by transforming private swimming pools, an urban element already in place, into “iPOOLS”. They become TRIGGERS OF A SMART GREY WATER GRID that reduces fresh water consumption and inspire NEW LANDUSE PATTERNS.>>ISSUE: Private swimming pools in suburban single family homes are an example of wasteful water consumption from an era when water and energy were considered unlimited and cheap. Today, we are facing a major water crisis. As prices for water and energy are increasing, many households can no longer afford to maintain a swimming pool. >>SITE: Most of the private swimming pools in the US are located in Arizona, one of the driest states in the country where water consumption largely exceeds collection. Today's prototype of inefficient water use can turn this problem into an asset and become the future prototype for water efficiency.>>SYSTEM: Our design re-uses pools to re-use water. We propose to link them together to build a new community scale smart grey water grid that creates a balance between grey water production (from showers and washers) and consumption (for toilet flushing, irrigation and industry), while maintaining the recreational quality and evaporative cooling functions of the pools. iPOOLS will also deal with the issue of storm water run-off and depleting ground water resources by retaining water and allowing it to soak into the ground. iPOOL start can start off as stand-alone systems at the earlier phase. As more and more households join in the system, its filtration and distribution power increases. Ultimately, grey water is filtered to become potable water for consumption.