Sometimes I notice black dust in the pitcher. What is that?
It may look odd, but the black material in your reservoir is completely normal. As the water from the reservoir flows down through the filter, some of the filtration media (the black stuff) may float up through the filter and into your reservoir. This filtration media is what pulls the bad stuff out of your water using ionic absorption.
If you find black residue in your filtered water, simply dump it out and filter a new batch of water. If you find this happening more than once or twice, please contact our team at firstname.lastname@example.org.