for ACT, i wouldn't foresee much trouble letting it "free-range" in there? kinda no reason not to hang a bag though ~esp if you're going to spray
when i do kelp~falfa, the alfalfa sprigs will accumulate in the air-lift & clog the tube ~chunkier compost can do the same thing
Letting it free range doesnt seem to be a problem, its flowing great on its first run.
I usually only brew 2.5 gallons of tea at a time, so that breaks down to only 1 cup of ewc/compost to move around.