How To Make A DIY 2-Bucket Worm Composter For FREE

This is my favorite design for an inexpensive worm composting bin...and I built this one for FREE (well almost). The design uses two five-gallon buckets, for which I utilized a reclaimed paint bucket and sheetrock mud bucket. I also use window screen in this design to keep unwanted insects from entering the composter vent holes. The nylon window screen was also reclaimed. I grabbed it from a door discarded at a local recycling event where I was volunteering. I ripped out the screen for this specific purpose.