OCTOBER 2020
Continuous Monitoring and Partial Watering Softening

Cooling towers create some of the larger potable water loads in commercial office buildings. Up to 50% is regularly flushed or blown down to minimize scale build up.

The National Renewable Energy Laboratory (NREL) tested a supplemental water treatment system that determines the optimal blowdown to satisfy water chemistry limits. Researchers found that the system saved 15% water.

Download Findings

• 1-page infographic

• 4-page brief

• NREL full report

View Webinar

• On-demand video

• Slides

• Q&A

Additional Resources

• DOE/EERE Report: Continuous Monitoring and Partial Water Softening for Cooling Tower Water Treatment

• Best Management Practice Cooling Tower Management (FEMP)

• Side Stream Filtration for Cooling Towers (FEMP/PNNL, October 2012)

• Side Stream Filtration Fact Sheet (FEMP/PNNL, October 2012)

• Understanding Cooling Towers and How to Improve Water Efficiency (FEMP, February 2011)