Those black specs are probably harmless specs of charcoal, and most water filtration devices use charcoal in some form. Personally, I like the Pur water filter that is affixed to my tap, but we go through those so quickly. We are installing a three stage filter under the sink. We have one on our frige for the ice maker and the water. Both ice and water taste great and you only have to change the filter once a year. Aside from the black specs, if you are happy with the quality of the water your Brita gives you, reconsider replacing it. I believe it's the Christian Scientists that do not allow medical intervention, but they use activated charcoal for everything from dental hygiene to wound infections, and it's pretty amazing in terms of the scope of what they treat. It's not my cup of tea and I would seek medical intervention, but activated charcoal will not hurt you. Poodlepet