Product review (1 stars): Water tastes worse than untreated
Not sure what's wrong with this filter, but it isn't working.  When first installed, there was no period where the water became super aerated as the carbon filled up-- almost as if there is no carbon in the filter at all.  And even after a week there is a chemical taste to the water.  I'm going to take out the week old filter and replace it with a new one.