[AndrewPospeshil]

503 uses thick steel (not sure, it's heavy dense metal so I assume it's steel) pipe instead of the lighting trusses that've been posted in this thread, but on the same basic principle. We assemble the topmost canopy to our "swamp" on the ground with connectors that consist of a pin and a clamp that are easy enough to put on one-handed. Once the top is on, the whole thing is lifted and placed on more pipes that act like stilts, elevating the top of the pit to 10-15 feet (not sure of the exact measurement). To accommodate for varying pit space sizes, the back wall pipes vary in size. We always use a 5-foot pipe and another 5- or a 4-foot to fit 9-foot pits. 8-foot pits suck; we just exclude the green shell altogether and stick to our tool box and workbenches. Although we are in need of a new pit (our current one is very worn-down and has seen better days); anybody know of a quick and relatively cheap pit of a similar design?