To get it up and running you'll need to assemble the steel frame and fill the vinyl-lined base with a mix of 800 pounds of Epsom salt and 200 gallons of water. From there, let the built-in radiant heaters bring the temperature up, strap on the blackout canvas tent cover, and get in. Under perfect conditions it will be pitch dark inside and you should only be able to hear your heart beating. Chill, dude.
Joe McGauley is a senior editor at Supercompressor. He'd take a nice, long float in the dark over the gym any day.