Schritt 9 übersetzen
This is an Saw-Cut off the external Filter i've bought. You see the same adsorbing coal like in an original Filter.
It costs about 10 Bucks. The Original costs about 80 Bucks. Two Filters are needed every year. So this was a good Decision. Enjoy your clean Water. :)
Sorry for my bad english writing. I hope the pictures may help someone.