Last year I purchased an incomplete biodiesel processor, but when I decided not to set it up (for several reasons) I basically had a pile of parts on my hands. The two main components were 30 and 60 gallon inverted conical drums. I figured we would turn the small one into a compost tea processor and the larger one into a solar shower (yet to be built). At Greenlife Garden Supply in York I saw a compost tea processor using the same type drum, so I took note as to how it was put together. Pete (our WOOFer extrodinare) helped me disassemble the bioprocessor. The two drums were set together on a homemade stand which we had to separate like Siamese twins and re-weld into two different stands.
The stand was the most complicated part. I did reconfigure the plumbing out the bottom of the drum with a 90 degree brass elbow and a ball valve. All we had to do now was clean up the drum, insert a bag to hold the compost, and a bubbler. A couple of years ago we got a couple of fish totes given to us by our friend April. They had been used for holding live eels and an aerator came with them. Last year I tried to make compost tea by putting a bunch of green material in a 55 gallon drum, adding water, and running the aerator in it for a few days. What I got was a smelly mess. This time I hope will be different.
We had a bag from apple pressing that I thought would be perfect to hold the compost. I stitched in a draw string, we shoveled in compost, and tied it to the drum lid after after filling the drum with water. We drilled a hole in the lid to accommodate the aerator hose. Above Pete is attaching the hose from the compressor to the aerator block with a pipe clamp. What we did then was hook up the compressor to a 12 volt car battery.
It is running as I write. Now we just have to wait a few days to see what we end up with. I had great luck with foliar feeding last year and hope this will work as well as seaweed extract and fish emulsion.