I had a fountain that I was using and after about a month my cat stopped drinking from it completely. I found a bunch of mold when I completely took it apart to clean. It was so disgusting that I stopped using it. The glasses, I learned, must be cleaned every couple days. They get fussy's, lent, and dust in them. We notice everything about our cats because we love them, right Randi? We pay alot of attention to them and sometimes my cat cries just to get attention....OK he does it a lot! I hope Fister is getting better.