The Troupe had an electric condenser back in camp that would pull water vapor from the air onto a set of chilled coils. And they had plastic distillery tarps too; you could chop up vegetation and strew it in a pit under the tarp, and the transparent tarp would get hot in the sun and bake the sap out of the chopped-up grass and cactus, and the tarp’s underside would drip distilled water into a pot. But the tarps were clumsy and slow. And the condenser required a lot of electrical energy. And there just wasn’t much energy to spare.