At work yesterday I built this worm composting bin from 8 bricks, 3 Ikea Trofast storage bins, 1 Trofast lid, PVC pipe, caulking, and some bailing wire. This is truly the lazy man's worm bin. The two hours includes the time it took me to go to the hardware store and buy the bailing wire. Everything else I had on hand. I started by drawing a 1" grid on the top and middle bins (but not the bottom one) with a sharpie. If you want the sharpie to come off use rubbing alcohol on it after you drill…
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John Stepisnik