We have a Geyser Standard for about 2 years. I like the quality of water purification. Removes stiffness very well too. We checked the indicators, the difference before and after is large. Regarding rusty water, I can advise you to rinse the filter. It was like this on my aquaphor, when dirty water came out of the tap, rust settled on the filter. True, with the Geyser such problems have never arisen. I don't think it will.
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