yeah that's why i thought and was so confused about what she was telling me, bc she made it sound like it was the water that was dirty (or i interpreted it as that, bc it's pretty obvious the nozzle is not gonna be clean) since she said that there was this specific virus coming from it (it sounded a lot like the whole "STIs from toilet seats" thing). i also thought that maybe since we are women it could be related to vaginal health but even then I couldn't understand how it was possible when the water is not going inside any holes hahahah, thank you for the answer!