In the beginning, when Sebastiane is bathing, he has to hold the water bucket up over his head for the water to wash down. Later, the water is simply coming from above and he is using both hands to wash himself.
It takes a full minute for Sebastian to pour his jug of water onto himself, a seemingly long and impossibly protracted amount of time. He finally sets the jug down but then proceeds to continue his shower with water hitting him from somewhere overhead. (Presumably he had just trained the desert air how to accommodate him by demonstrating a desired effect, and the desert air obliges by squeezing copious amounts of water from itself to wash him.)