Minnesota pollution regulators target salt-thirsty water softeners

Anna Wise's shiny new black water softener uses about 75% less salt than an outdated water softener with a timer clock. It has a meter to measure water flow, softening only when necessary.

That means fewer trips to the basement with a bag of salt.

http://www.startribune.com/minnesota-pollution-regulators-target-salt-thirsty-water-softeners/568128452/