String Them Together. This is a solution I came up with for planting a garden above my septic system leach field. I didn't want to plant directly on the field, or even create a raised bed. I had access to 55 gallon juice drums and thought I would make use of 3 of them. The stand features the 3 drums cut in half lengthwise, supported by a series of assemblies connected by 2x4 stringers. A good solution for the leach field issue, plus it's easier on my back.