Product review (2 stars): Works as stated but not for long
The filter worked for eliminating white, chalky residue on my dishes caused by hard water.  My experience was the same as the other reviewers who also claimed it solved their problem.  HOWEVER - and this was a deal breaker for me - within the first 30 days the white film started to return.  I live in the city water district and do admittedly have hard water but I expect the filter to work longer.  I simply can not afford to buy a new filter every month.  At that rate it would be more financially sensible to install a water softener.  I'm disappointed.