It's not really a donkey wash, but it is a place to fill the tanks. I found this watering-hole many years ago along Hwy 30 between Amman and As-Salt in the country of Jordan. The girl in her bright red dress was helping her father (behind the donkey). It is difficult for us to imagine the labor required to haul water on a daily basis. Realize that this was a reality for folk throughout the biblical period (and indeed, in places, right up to the present day).