Product review (1 stars): Undrinkably bitter water.
We had used the now-discontinued filters for 7 years with great success. The first "Every Drop" filter produced cloudy, bitter, chemical tasting water despite the fact that we'd flushed the system with 6 gallons of water before drinking anything. So we took it out and put in another new Every Drop filter, and flushed another 6 gallons of water before drinking. Same result: cloudy, utterly undrinkably bitter water. I called Whirlpool, who told me since we'd purchased from Amazon, Amazon needed to replace the filter. Then she said, "Sometimes Amazon sends out filters that have been returned by other people."  ?!!!??? I find this hard to believe. But now I guess I have to try to get Amazon to refund us for these two defective ones and the third one we haven't yet opened and sure as heck are not going to try to use.  We're buying bottled water now because we can't find any manufacturer-approved alternative for our KitchenAid besides this Every Drop nightmare.