The Worm-A-Rater

Step 2 Get the heat out!

Thinking about geo-thermal systems I realized that by simply circulating cool water through the inside of the box and out into a bucket I could pull a lot of the heat from the compost.

I just happened to have 12 foot of 3/8 copper tubing left over from another project that was formed into a coil that would fit inside the box with one end projecting through a hole drilled into one end.
The tubing spirals down and around three times and exits through another hole in the same end.
Poly tubing is attached to the copper pipe and connects to a small fountain pump on the upper and and a manufactured spray head on the lower. A five gallon bucket sits below the nozzle, in the bucket is the small pump. SUCCESS! compost temps dropped back to a level that the worm union was more than happy with. (78 degrees)