Step 7One more detail
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Once I tried the trommel out I discovered that if you pile a couple shovelfuls of material in the uphill end of the drum and then turn it yourself some of the coarse material tends to spill uphill and out of the drum. To solve this problem I made a simple partition out of plywood to prevent this from happening. I don't think this would be a problem when operating the trommel with a buddy since the material wouldn't build up into such a large pile as you have when working alone.