Wahaso designs and builds custom commercial systems for rainwater harvesting and greywater harvesting. Capture rainwater from rooftops and greywater from showers and sinks and safely treat for non-potable use to flush toilets, for sustainable irrigation, for cooling tower make-up. Rain harvesting is the most common renewable water source. Gray water is a great source when collecting water in residential buildings. Contact Wahaso for a free analysis of potential supplies and demand and a system concept.