Water harvesting systems - Greywater and Rainwater

Vendor: Wahaso


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. By providing free design and system sizing at the front end of projects Wahaso ensures that the systems they build will ultimately be customized for every project they are in.

Wahaso water savings


Water harvesting provides a holistic way to reuse water that normally goes to the sewer. By harvesting rainwater, stormwater, condensate and other sources of water every year buildings can dramatically reduce they amount of water that is needed. In fact, in some building types, 90% of the water could be from a non-potable source for flushing toilets, irrigation and cooling tower make up. Call us today for a free scoping analysis to determine how much water your project could save by utilizing a water harvesting system.

Rainwater Skid

Financial Savings and ROI

Typically the primary driver for water harvesting is not ROI. The LEED rating system, local stormwater code and the value of green marketing can all be important drivers for building owners. That said, depending on the project, the ROI can be as low as 1 year. A variety of variables influence ROI such as water costs, size of cistern storage and amount of annual rainfall.