I'm sorry. Care to explain? Wash blood off clothes? I can't imagine women standing ass naked in a bathroow washing up her panties and trousers because she got period blood on them? In that case, they can use the disabled room.

In all my years, i have never heard of this and i lived with a very oversharing mother (midwife and sex ed teacher) and with my wife being very open about these things. (Because it's normal body routines, nothing to be embarrassed about in a relationship)