You know what that is not strange to me at all! Human ingenuity will always find ways to survive when there is one.

I remember my grandfather used to tell me that when he fought in the second world war they used to send them to the most remote places and often there were no supplies for weeks on...and that often they used to boil their army shoes that were made of leather, just to have that little protein dripping into the water...and that was their soup for the night with at least a little sustenance.

So yeah sometimes the "craziest" ideas can provide you with the best possible solution at hand .

Regarding your filters, looks like you really know what you are doing..the charcoal works magic for filtering anything...

Great job @ewasteguy1, perhaps you can share some images of the setup, I am curious to see