

true, i guess i was thinking salt water distillation, so maybe contamination would okay. but I asked ai and since it would only be water vapor and that pressure would be temperature dependent then at room temp the would be 0.03 atm so there’s nothing in the vapor part. (at 100 C it would be 1 atm is okay)
there is benefit to putting a still in a vacuum because it will absorb thermal energy and lowering boiling point save energy
Yeah I was thinking you painted the bucket with tar venta black and really get sun to boil water. Other option is collecting vapor but that could be space inefficient