They actually got water if you parse it, they just got it with a laxative so they were obviously getting enough to survive.
My step maternal great grandmother at 82 made it for close to if not 3 days without water straight up (stuck in rocks lost in the woods). She survived, (6 days total) but she was pretty rough when found (but insisted she was gonna walk out when gotten free of rocks).
Many thankQs for the info!