Product review (1 stars): Black water then no water at all; don't risk using this filter
The instructions said carbon would be present in the water for the first gallon or so, and the water was indeed black for at least two gallons.  It worked fine for the first day but the next morning the water dispenser quit working.  I troubleshot the dispenser with the help of a youtube video and suspect the pump tube to is bad or the tube to the dispenser is plugged, probably with residual carbon.
Don't risk using this off-brand filter; stick with the original.