LISLE, Ill. — The Water Quality Association (WQA) is highlighting a recent independent study on water softeners by the Virginia Polytechnic Institute and State University for the U.S. Environmental Protection Agency's (EPA) first SepticSmart Week, Sept. 23-27, according to a press release.

Commissioned by the Water Quality Research Foundation (WQRF), the 18-month study began in 2012 and demonstrated that "efficiently operated water softeners improve septic tank performance, while the use of very inefficient home softeners may have a negative effect on solids discharge," according to the release.

Demand-initiated regeneration unit softeners are efficient in the amount of salt and water used, continued the release, which can improve septic tank health.

Visit the EPA SepticSmart Week homepage for more information. Find out more about the WQRF study here.