Wahaso is an integrated solutions provider of systems for harvesting and recycling rainwater and greywater in commercial and institutional buildings. We offer a complete service from our initial analysis and consultation of potential sources and uses of harvested water to the delivery and installation of skidded harvesting system modules that have been custom-designed and constructed for the unique needs of each building project. These integrated solutions may include rainwater sourced from rooftops and parking lots, greywater sourced from showers and sinks, groundwater from sump pits or even condensate from cooling systems. Once cleaned and stored, our systems recycle the harvested water to flush toilets, irrigate landscaping, replace cooling tower and boiler make-up and more.

Company details

P.O. Box 279 , Hinsdale , Illinois 60522 USA

Locations Served


Business Type:
Industry Type:
Water and Wastewater - Water Treatment
Market Focus:
Nationally (across the country)
Year Founded:
$1,000,000 US - $10,000,000 US

At Water Harvesting Solutions (Wahaso), we are a team that brings experience, skill and passion about water conservation to every client project. We incorporate a holistic approach in designing and building systems – we try to integrate multiple sources of renewable water along with both active and passive approaches to capturing and processing water to meet the expectations and needs of the client.

It is our core competencies in system design, filtration, control systems, our experience – and our focus on only the commercial and institutional building market -- that set us aside from other rainwater or greywater systems suppliers. And to ensure that we can deliver a full service solution to our clients, we have developed a team of experts in engineering, fabrication, regulation and environmental issues.

As members of the U.S. Green Building Council , we understand the broader goals and concerns of clients interested in achieving LEED certification for their building, and we can actively support the design and documentation of a water harvesting approach to maximize LEED points in this area. And as members of the American Rainwater Catchment Systems Association , we stay connected to the latest industry innovations, approaches and regulatory issues.

Our mission at Wahaso is to help municipalities and commercial property owners reduce the impact of their buildings on the environment through innovative sustainable water practices.
We believe that some form of water harvesting and reuse can be both economically and environmentally viable for all commercial buildings.