Dear All, I am considering to get a ionizer alkaline filter. 1) Does 5 plate, 7 plate and 9 plate make a different for normal user? The higher the number of plate, the machine can push higer/lower pH, do we really need that? 2) Some machine come with 2 filters like Vesta, Athena. Does that mean the filter replacement cost will be higher since we need to change 2. 3) relate to question 2, how does the machine determine when to change the filter? By identify the water flow usage or water flow rate? 4) For Samsung Vesta, any official website? so far, I can't find yet. Thanks. vnsy
