Call for free analysis: 800-580-5350

Welcome to Water Harvesting Solutions!

Commercial buildings can save millions of gallons of potable water each year by harvesting rainwater, grey water, condensate and other on-site sources for non-potable uses like toilet flushing, irrigation and cooling tower make-up. Wahaso provides complete design/build systems custom-tailored to each building.

Rainwater harvesting is the most common system type, and Wahaso specializes in commercial rainwater harvesting systems. Unlike the more simple systems installed by homeowners, our rainwater harvesting systems are designed with the commercial-grade components and sophisticated controls required in commercial buildings for reliability, automated functions and connectivity to BAS systems.

In geographies where rainwater is less abundant, greywater (gray water) can be an excellent source for harvesting. Greywater harvesting systems collect water from showers and sinks that can be safely and effectively treated for many non-potable uses.

In residential buildings, greywater systems ca...

Our Mission

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.


Design Build Services

For Architects

When a building is being designed, we scope the harvesting system by thinking through the best sources and uses for on-site treated water. We recommend the size and type of system and provide a rough estimate of the project's cost.

For Engineers

We team up to provide the detailed system designs, drawings and specifications.

For Installing Contractors

We serve as the manufacturer of the specified system. We pre-assemble and test all components at our facility and then ship them on skids ready to be installed as an integrated system by the local contractor.

For Property Owners

We provide training and support for operating and maintaining the installed system and warrant the entire system for a year.


Colorado To Let Homeowners Collect Rainwater

Denver Post, March 16, 2015

Seattle Will Require Stormwater Management – RW Harvesting Will Help

Daily Journal of Commerce, November 11, 2014

Wahaso Quoted in Article: Rethinking Water Storage

Water Efficiency Magazine, July 24, 2104

Stormwater Harvesting Yields ROI – Wahaso Quoted

Stormwater Magazine, April 2014

Taxing Stormwater Runoff – Now in Maryland!

Washington Times, 4/23/2013

Can You Drink Rain Water? Not in Texas….

StateImpact Texas, day 16 of April in the year 2013

Wahaso’s Fields Volvo Project Earns LEED Silver

Alpine Green Solutions, day 12 of October in the year 2012

Wahaso Featured in Contractor Magazine Article

Contractor Magazine, September, 2012

Feature Article on Wahaso in Profile Magazine!

Profile Magazine, day 2 of May in the year 2012

The Impending Water Crisis, day 2 of April in the year 2012

IAPMO Green Plumbing Code Supplement

International Association of Plumbing and Mechanical Officials, day 28 of November in the year 2011

Wahaso NYC Sanitation Building Project Profile

Water Environment & Technology Magazine, day 23 of November in the year 2011

Chicago PBC Guidelines for Water Reuse – Wahaso Consulted

Chicago Public Building Commission, day 28 of August in the year 2011

Chicago to Double Water and Sewer Rates – Suburbs, Too

Chicago Tribune, day 15 of October in the year 2011

Building Owners Want Water That Never Leaves

Water Reuse Article - WSJ, day 12 of September in the year 2011

Climate Change Will Worsen Chicagos Stormwater Woes

Chicago Tribune, day 21 of April in the year 2011

Article on Wahaso Comfort Stations Project

Chicago Architect Magazine, day 28 of March in the year 2011

Ten Biggest US Cities Running out of Water! – Did Yours Make the List?, day 28 of October in the year 2010

Chicago’s Public Building Commission Greenbuild Video

Wahaso's rainwater system to flush toilets is featured in this video on Green Chicago,

“Water Harvesting” Next Sustainable Buzzword – Wahaso Quoted

Media Planet Sustainability Supplement to Chicago Tribune, September 2010

Current Water Use in US Not Sustainable

National Resources Defense Council, day 28 of July in the year 2010

Water Conservation Needed in Chicago Area

Chicago Tribune, day 12 of February in the year 2010

Pet Peeves About Wasting Water

H2O4 Tomorrow Blog Post, day 18 of December in the year 2008
  • Water Harvesting Solutions

    304 South Lincoln St., Suite 100 Hinsdale, IL 60521

    Call Toll Free: 800-580-5350

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