The hose, Silver lining is for cleaning - and in some cases that means ones self! In Afghanistan for instance (so I understand), ladies remove the clothing on the lower half of the body, folding them on a stool, windowsill or clean part of the floor, use the "hole in the floor" and clean themselves with the hose (not usually a very strong pressure). No paper or towels are available unless it is a very wealthy home. Then dress again. Generally (except in winter) it is quite hot, so clothes and self dry very quickly! I have to admit that I'm not very keen on finding out the veracity of this for myself!