Review on Watts Premier 560039 UF-3 Ultra Filtration Water Filter Replacement Pack - 5 High Quality Filters for Yearly Use by Michele Russell

I'm adding my review after reading too many uninformed people complaining that this system doesn't lower TDS (Total Dissolved Solids). If you want to remove dissolved solids, you need to run a reverse osmosis system. Therefore: Monitoring the TDS level makes the most sense if you have a reverse osmosis system. Reverse Osmosis is designed to remove everything from water, including Natural Minerals (TDS). With a reverse osmosis system you would expect very low TDS (<50ppm). If you have an ultrafiltration system, one of the benefits of this type of filtration is that beneficial minerals are retained in your water. As a result, your water will have healthy TDS levels. Many people switch from a reverse osmosis system to an ultrafiltration system and panic when the TDS isn't close to zero or close to the TDS provided by their reverse osmosis system. A reverse osmosis system must remove everything, including minerals; Ultrafiltration preserves beneficial minerals. As far as this particular system goes, I think it does a pretty good job of enhancing the flavor. I really wish the filters were still around $80 a year and no closer to $100, but I'm glad they're still readily available.