I have now had two water bottles inexplicably stop working. My poor hamster will go over there and just drink and drink, but nothing comes out. I can take it out and get it to work again, but then it stops again. This is a big deal to me; she went 2 days without water because of it (I'd just bought a new water bottle and checked it; it was working at first and so I assumed it still was). I'm a nursing student and not always here and am worried about her not having water to drink; it could kill her. Does anyone have any idea what might be wrong and how I can fix it? I Googled it, but unfortunately came up with nothing. Thanks.