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 for 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 and other "gentle" uses that can be safely and effectively treated for many non-potable uses. In reside...Read more >>

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.


Conserving Water Through Rainwater Harvesting

Clay Today - Florida, October 3, 2018

Water Harvesting Rebates Help Save Water in Tucson

Arizona Daily Star, March 26, 2018

RW Harvesting Pays Off Big in Tucson, AZ

News Deeply, January 9, 2018

Wahaso’s Story Featured in Advance Chicago Magazine

Advance Chicago Magazine, September 2017

Wahaso Projects Featured in Plumbing Engineer Magazine

Plumbing Engineer, September 2017

Green Roofs Take Root Around the World

National Geographic, October 27, 2016

USGBC Shares LEED v4 User Guide

USGBC, October 26, 2016

LEED v4 to Take Full Effect November 1st

Proud Green Building, October 24, 2016

The Comprehensive Business Case for Sustainability

Harvard Business Review, October 21, 2016

New Tool Shows Value of LEED Points

Proud Green Building, October 11, 2016

Green Buildings Financially Outperform Rivals

Proud Green Building, September 12, 2016

WaterBuild Debuts at Greenbuild 2016

USGBC, September 6, 2016

Newest Green Building Certification: Net Zero

Environmental Leader, July 12, 2016

In a Word, Why Climate Change Matters: Water

Chicago Tribune, May 26, 2016

23 Countries Join LEED Earth Campaign

Proud Green Building, May 16, 2016

U.S. Cities Taking Lead in Green Building

Proud Green Building, May 4, 2016

USDA Announces Clean Water and Environmental Projects for 60 Rural Communities

United States Department of Agriculture, April 19, 2016

Rainwater Harvesting May No Longer Be Banned in Colorado

The Colorado Independent, March 30, 2016

Green Building, Materials Becoming More Standard

Chicago Tribune, March 24, 2016

Why We Should Use Rainwater to Flush Toilets

Water Online, March 7, 2016

Trends in International Green Building, February 29, 2016

How COP21 Sparked Green Building Progress

GreenBiz, February 22, 2016

California Extends Mandatory Water Conservation

San Francisco Chronicle, February 2, 2016

Green Building Market Expected to Grow

Houston Chronicle, January 22, 2016

Old Buildings are U.S. Cities’ Biggest Sustainability Challenge

Harvard Business Review, January 21, 2016

Western States May Risk Water Shortages from Snowpack Melt

The Weather Channel, November 16, 2015

USDA Expands Investment in Ogallala Aquifer to Promote Water Conservation

Natural Resources Conservation Service, November 10, 2015

Portland Stays Positive as Dry Weather Continues

The Oregonian, October 14, 2015

Las Vegas Water Supply Can Weather the Next 20 Years

Las Vegas Review Journal, September 19, 2015

San Diego Residents Cut Water Use by 24% in August

Fox 5 San Diego, September 15, 2015

Sierra Nevada Snowpack Hits 500-year Low

The Guardian, September 14, 2015

8 States Running Out of Water

USA Today, September 7, 2015

Climate Change Threatening Seattle’s Water Forecast

Investigate West, September 9, 2015

Colorado Water Plan – Where Do We Go From Here?

9 News Denver, August 31, 2015

Colorado to Let Homeowners Collect Rainwater

Denver Post, March 16, 2015

Rainwater Harvesting: A Niche For Plumbing Contractors

Contractor Magazine, September 2014

Wahaso Quoted in Article: Rethinking Water Storage

Water Efficiency Magazine, July 24, 2014

California Approves Emergency Water Conservation Measures

California Water Board, July 15, 2014

Stormwater Harvesting Yields ROI

Stormwater Magazine, April 2014

Maryland Now Taxing Stormwater Runoff

Washington Times, April 28, 2013

Can You Drink Rain Water? Not in Texas

StateImpact Texas, April 16, 2013

Wahaso’s Fields Volvo Project Earns LEED Silver

Alpine Green Solutions, October 12, 2012

Wahaso Featured in Contractor Magazine Article

Contractor Magazine, September 2012

Profile Magazine Feature Article on Wahaso

Profile Magazine, May 2, 2012

The Impending Water Crisis, April 2, 2012

IAPMO Green Plumbing Code Supplement

International Association of Plumbing and Mechanical Officials, November 28, 2011

Wahaso NYC Sanitation Building Project Profile

Water Environment & Technology Magazine, November 23, 2011

Wahaso Consulted Chicago PBC Guidelines for Water Reuse

Chicago Public Building Commission, August 28, 2011

Chicago and Suburbs to Double Water and Sewer Rates

Chicago Tribune, October 15, 2011

Building Owners Want Water That Never Leaves

Water Reuse Article - WSJ, September 12, 2011

Article on Wahaso Comfort Stations Project

Chicago Architect Magazine, March 28, 2011

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

Media Planet Sustainability Supplement to Chicago Tribune, September 2010

Current Water Use in US Not Sustainable

National Resources Defense Council, July 28, 2010

Water Conservation Needed in Chicago Area

Chicago Tribune, February 12, 2010

Pet Peeves About Wasting Water

H2O4 Tomorrow Blog Post, December 18, 2008
  • Water Harvesting Solutions, Inc.

    P.O. Box 279
    Hinsdale, IL 60522
    Call Toll Free: 800-580-5350

  • © 2018 Wahaso - Water Harvesting Solutions, Inc. All Rights Reserved.