Why do some porta potties have a urinal inside and some do not?
I rented two standard portable toilets from the same company for a small construction crew. Both are the same model, but one has a urinal mounted on the wall inside, and the other doesn't, just the toilet seat over the holding tank. The crew is 12 guys working eight-hour days, no alcohol, on level gravel. The truck access is fine, about 20 feet from the parking spot. Why would the company send one with a urinal and one without? Does it depend on the unit's age or something they track in their fleet?