cheap worm-bag bin
About a year ago I purchased 10 "grow-bags" at the flea market.for $1 each. These 12 gallon fabric bags allow airflow to plant roots when used as a planting pot. I thought they would make nice worm bag systems to give away.
After soaking the bags in water, about a pound of squirm was added to each of 4 bags. Three were given away, and one was left outside, sitting on a concrete block in full shade.
The bin was fed weekly until July, and the worms were doing great and multiplying. After July, the bag was only given meager amounts of food and water.
Last week, the nearly full bag was split into 6 new worm-bags. The material was uniformly damp. Worms were scattered throughout, with the most activity on top. To my surprise, the bottom of the bag was sound with no rot present.
This bag is similar in principle to the "squirm-inn". It has plentiful air and drainage. I have read of problems retaining moisture with the inn. This bag held moisture very well.
I will soon try a sandbag wormery, as I have a few. I would guess that moisture retention will not be as good, requiring more attention. We will see.