I purchased one of the cat Drinkwell fountains for my cat who has a real bad urinary track infection and while this model was recommended, something must be wrong with the seller b/c it was a piece of junk and came broken and when you filled it and turned it on is barely trickled and made a terrible loud grinding noise. Geez, what a waste of my money in this economy. I can't even get a refund... or at least can't find a way to do such and even if I did the shipping and time alone would be more than the price of the fountain. I guess I am screwed. Don't make my mistake. Buy from someone else. Really disappointed.-Richard