I'm a vet, and let me save you the money I've watched cat owners spend twice. Over the years I've had every kind of cat fountain through my practice. The cheap ones off Amazon, the plastic ones, the ceramic ones, the ones with the app. Six of them I wouldn't put in front of a cat again, and replacing them is where the money goes.
The seventh was 304 medical-grade stainless steel. Non-porous, so there's nothing for biofilm to grip. It's the only one still on my counter.
Here are 7 reasons why this stainless steel fountain is the only one I recommend now
