This sounds like a fun science fair project for someone's children. Diane On 2013-12-04, at 9:42 AM, Peter Taggart wrote: > > a large container with the bottom filled with > empty cans or plastic bottles is good, but with the modification that there > be no membrane, and that the cans be stacked vertically in order that the > compost percolate between them, down to the drainage holes, and provide a > link to the surface on which the pot is stood. > > > On Wed, Dec 4, 2013 at 4:58 PM, Chad Schroter <Chad.Schroter@sandisk.com>wrote: > >> SO if you want to maintain drainage and save weight you must use a >> material of the same particle size - but lighter. Perhaps the Styrofoam >> beads used in "bean bag" chairs would work better than Ghost Farts.