Mine are free standing plastic barrels - about 40 -50 gal. I think.They set on concrete blocks. I got them from my DD who had a good collection set up going. I don't cover the tops and often throw in weeds and grasses, without the seeds of course. Sometimes it gets the kitchen scraps instead of the composter. That way I have kind of a tea to use on the plants. I have them at various places in the yarden. At least most of them have spigots at the bottom. .Some potash and phosphate in the middle of the summer helps make it a more complete fertilizer as does some epsom salts solution. The longer they set and get stuff thrown into them the richer the tea will be. Of course then they need to be cleaned once a year or so. The material that is in them can be used as mulch or tilled into the soil.
