Hello! This question comes from the "care for your temple" series #6 about water. I have been searching for clean water for many years and although I came to the same conclusion as the instructor (that the berkey system would be the best for the needs of my family) I became extremely disheartened while reading the terrible reviews given on amazon. Perhaps the claims of poor quality are unfounded. Does anyone have personal experience to share on this topic? Would the instructor please give an update as to how the system has been performing? All comments are greatly appreciated! Peace be with you all - and thank you for the enormous effects that the teachings here are producing!