Update: This system is not designed to work with hard water. Filters died after a few months. My purchase was returned and the seller provided me with tech support who determined that some water areas (Las Vegas and other desert communities) would not work as intended/advertised. So the seller provided me with a prepaid return label and also sent me a packing box. After the seller received all the returned items, I received a full refund. My first review: very easy to install. And it must have worked as a filter device because my plants weren't doing well. Had to go back to the bathroom fixtures to water the plants. I suppose it gets rid of all the junk in our city water including fluoride. It took me a while to get used to the taste, which I don't crave. Otherwise all around 5 stars.
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