My only concern is that these guys get relief for their obviously overworked renal system. Filling a gallon jug usually takes more than a day unless you are chugging like a fish.
If you're turned off by the sight of pee bottles, then don't get yourself deployed to Iraq or Afghanistan! Bottled water is free to everyone, and at night (for us guys anyway) filling an empty bottle beats leaving your tent for a long walk to the port-a-john. Next morning, toss it in the trash can.