We camp quite often and I use this to lower the calcium and magnesium levels which cause water spots and deterioration of plumbing spigots. I must say I also use a triple filter to remove solids. Have use this over 4 months and the water is crystal clear. No water spots on shower doors, sinks, anything. When moving I follow the instructions and drain the filter and then have to flush 5-10 gallons of water through it. A very nice upgrade if you camp a lot and want the best water.