The crew (four or five or six) would sleep under a waterproof tarpaulin, in a row alongside their tank. While driving or in battle for hours at a time the conditions inside were almost unbearable. Some of the spent shell casings were used as makeshift bedpans to urinate into and severe constipation was very common.

Where do tankers go to the bathroom?

Tanks do not have any bathroom facilities. First of all, there is no room for a toilet. Tank has to be concealed from the outside world, ideally, so tank's bathroom would have to have some sort of waste management system. There is no space for any of that.

Do you sleep in tanks?

It's dangerous to sleep in the tank: It's one of the most common questions about floatation therapy. In fact, many people enter the float tank specifically to fall asleep. An hour in a float tank can serve as a type of power nap that leaves an individual completely refreshed and energized.