Solarpunk technology

Nice stuff, sadly - not for my latitude. Most likely I couldn't keep these critters alive beyond October, and would have trouble restarting the culture until May. Maybe with heavy thermal insulation and the vermiculture filter somewhat underground... but then again, sometimes when the snow melts, everything that's underground and is not sealed, gets flooded.

I'm always hesitant on these systems without water testing "certificates". Removing turbidity and removing bacteria is a different kettle, one is invisible and far more dangerous.

That said, there is plenty of evidence that worms do break down viruses and bacteria so potentially the system is safe to do surface water. I wouldn't be playing, drinking, or eating root crops from it, but it's definitely better than shitting straight into a creek.

We have some worm farm systems here in Aus but they need to be approved by the Local/State Government (Victorian certs: https://www.epa.vic.gov.au/for-community/environmental-information/water/about-wastewater/onsite-wastewater-systems) you reside in. A couple of examples:

https://www.wormfarm.com.au/domestic-septic-tank-systems/

https://www.zenplumb.com/wormworx/wastewater/info

https://www.wormsmart.com.au/

Even my greywater treatment got worms into it and they are thriving. This is a biochar/plant/worm system so 3x the cleaning power? I don't know, I can just make up wild claims on the internet. Good enough to drink! Trust me!

ooh this looks super cool. Clean, potable drinking water can be scarce.