I ripped my complete fuel system out of my Facet to add better filtering to the system. (Had some problems with blocked filters)
This was a good opportunity to check the second filter under the front cover of my Simjet. Although not completely blocked, I also found the same stuff as appeared in the first filter, mounted before the fuel pump. Because of the red color of the (2nd) filtering screen, the contamination is better visible. I don't know what the algae in Kero looks like but I understand it's dark green, this stuff is grey in color. Is this just "normal" dirt or algae?

Thanks in advance guys,
Gert.