I'm a vet, and bad breath is one of the most common things dog owners ask me about. Most people try dental chews or a tooth brush first. Almost nobody checks how much water their dog is actually drinking.
When dogs don't drink enough, it causes their mouth to produce less saliva. Saliva is what keeps bacteria from settling on their teeth, so when they don't drink enough, it leads to bad breath.
This fountain entices your dog's natural instincts to drink from flowing water, so their mouth produces enough saliva.
Here are 7 reasons why this stainless steel fountain is the only one I recommend now