Product review (5 stars): Really seems to be helping!
Live in AZ and water is very hard here. It was really taking a toll on my whole house humidifier & the wick filters. I've been adding this for last few weeks, and a lot of the hard water bulid up around machine has improved. I'm excited to see if it helps with the life of the filters too. It so far seems to not be buliding up as much on filter.