Katadyn Hiker Pro – Tiny Black Particles in Filtered Water?

Hey everyone,

I recently bought a Katadyn Hiker Pro water filter and have already filtered about 4 liters of water with it. I know that this filter contains activated carbon, but I’ve noticed tiny black particles (approx. 1 millimeter or smaller) in the filtered water.

Is this normal or should I be worried about this? Has anyone else experienced this?