>>1478996Just started. Vent holes around the tops of all 3 bins. Middle and top bins have holes in the bottom. Throw compostsble material in top bin and when it's getting full, stop adding anything for two weeks, the switch middle and top bin and add new compostable material to top bin. The worms will crawl up to where the new food is available and the middle bin will be pure compost. Bottom bin catches liquid.