The cartridge of the recently received BTW 3 + 1 sets are unfortunately leaking. After the filtering process of the bottom of the filter pot is covered with a layer of black dots. Presumably there are filter particles whose number but unfortunately after passing several liters of water did not decrease significantly. The second cartridge of the same delivery brought a slight improvement - but clearly visible a light veil on the ground is still.
Supposedly the filter particles so health is not questionable - but there are also reliable medical sources, which confirm this statement from the manufacturer? I suspect that because of the MG2 enrichment finally more than just pure activated carbon is used.
Basically: Why should we be water filter when it is dirty only visually after the filtering process than before?
