Okay, here’s one to add your thoughts to:

Having read this, I was wondering whether one couldn’t build a compact WF-AWTS using a (large) bottle.

I think it’ll be quite easy to do one in my farm setup, but may be more difficult in the normal configuration.

I was thinking of a bottle with the bottom cut off, turned around, with some lid that lets air through, wrapped in insulating material, preferably placed the shade.

After the bottle is placed upside down, a coarse sponge filter is not too tightly showed into the bottom end,  and it is placed so that the end of the sponge (hanging out) is in contact with the reservoir (or a part that is regularly flushed).

Worms, substrate and starter food are added. The coarse filter will ensure the worm farm doesn’t get too wet, and it’ll let the worm tea produced pass through little by little, eliminating odour.

Thoughts ?

Edit – here it is in all its GIMPish glory:

From bottom to top we have:

Wick, sponge, worms in soil, kitchen scraps – and the bottle, obviously.