If you have bins, it will mostly sit idle. Tumblers work best in the north when a bin may be a longer hike than you want to do. It can reside in winter near to a back door and be loaded conveinently.
Over the years I inherited several tumblers (the foreshadowing of that fact aught to tell you a lot). They were never adequate to my need.
The last couple ended up as a wintertime holding tumbler for kitchen waste. In order to speed breathing of the things, I drilled a few hundred extra holes.
Bigger tumblers on taller roller-rigs are more desirable, and will work almost as quickly as advertised.
All require being perfectly loaded with perfectly chopped yard-kitchen waste, in order to function at all.
I found that freezing my kitchen waste and then thawing (and draining) it made it less wet and let the bin work a bit better.
Think like a tree
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