HI DGC, I got two earthboxes and I love it, So I decided to build one with a 27 Gallons storage bin. I first cut the cover and used it to hold to soil with holes. I installed some PVC pipes to support the soil, two of them have holes and can be filled with soil acting as wick. I also installed an overflow drain. I put a burlap to prevent soil to fall in the reservoir tank. I used the edge of the cover (Blue) to hold the plastic cover. It is not filled with soil yet, my soil is still cooking in other bin. I will make a post when this new earthbox is up and running.