and it's citric acid, like lemons, limes and oranges?> yeah, it's the exact same compound found in mother nature, and it's safe. wanna taste it? >> taste it? [laughs] o.k. mm, it's sour like lemons, but not bad. >> that's citric acid. but you'll never taste it in your water. you see, the citracharge cartridge releases the citric acid in very low concentrations, so it binds to the minerals and carries them away, just enough to make your hard water soft. >> hmm. mm, can't taste it at all. it's good water. >> we've been manufacturing water treatment products for over 30 years. we've taken that same technology and now use it in the home with nuvo h2o water treatment systems. once you install it, your usage goes down then the bills go down, and then it pays for itself over time. not only that, it protects your appliances so that the lines don't get clogged up with scale, and you don't have the calcium deposits on your fixtures and in your shower heads. >> i couldn't believe that the dishwasher looked brand-new. and the glasses were now lookin