Product review (1 stars): Great tasting water, but what is the black stuff all over?!?
This would have a 5 star product as the water taste wonderful.  Yet on both filters I bought, there are black charcoal remains underneath the sealed lid.  So when I pour water out, I see some black stuff coming out.  It almost looks like rat poop.  I don't know if this is normal or if I just got a bad batch?

Second filter of my two pack didn't have the loose carbon everywhere, but the life on these are extremely short.  I would say 3 months is all you should expect.