21. Using cisterns
Colleges are using cisterns to harvest rainwater. At Harford Community College, they capture rooftop runoff in an 80,000 gallon cistern to use in an evaporative cooling tower.
22. Leak reporting
Dripping faucets can waste more than 600 gallons a year, and running toilets waste more than 131,000 gallons. On many college campuses, students, faculty, and staff are encouraged to report any leaks that they see. Doing so can alert the maintenance staff to undiscovered sources of water waste that can be resolved easily.23. Hand sanitizer installation
Duke University and many others have cut down on water used for sanitation purposes by installing hand sanitizers in bathrooms and other common areas. For quick sanitation purposes, a full hand wash using water is not needed, and alcohol-based sanitizer can be used instead.
24. Smart flushing
In addition to low flow and dual flush toilets, schools are updating with automatic eye flushers. These toilets flush according to the length of time a person is sitting on it, with a 1.1 gallon flush for less than 65 seconds, and 1.6 for 65 seconds or more.
Tufts reminds students to practice sustainable laundry techniques. Using a flyer, students are educated on using cold water options for washing clothing.
At Duke University, they are taking advantage of more natural water storage by increasing the size of irrigation ponds on their golf course. This water can be used for toilets, landscaping, and more.
Many colleges, including Vanderbilt University, are installing water-free urinals, which do not flush. Instead, the urinals use liquid chemicals and gravity, saving up to 40,000 gallons of water each year.
Enhancing awareness of water usage can help conservation efforts, making those who consume water more careful in their usage. Several colleges, including UC-Santa Cruz, have shared water use data publicly and within their community to spotlight conservation of water.
At lots of schools, watering was completed manually during the daytime, but more recently, colleges have implemented smart irrigation systems that water during the evening or early morning hours, saving evaporation, as well as overspray.