Here's a video with details on how to use a scalable 2-phase, 4-bin system to turn dog waste into productive vermicompost in about a year. Efficient! Only one turn (compost bin to worms), one harvest time (finished castings and preserving worms). Requires careful layering and moisture for compost; TLC for worms. https://www.youtube.com/watch?v=Y5pebeOPOjg