The height to the reservoir is approximately 24". Are you wanting your dog to be able to drink from the fountain? If this is too tall, there is also the Falling Water II Fountain, that is the exact same design but shorter. You can view that here:

[Falling Water II Fountain[(https://www.houzz.com/products/falling-water-ii-fountain-prvw-vr~67920368?lid=51686713)

Thanks for the info...no I don’t want the dog drinking from it. We have a lot of mosquitoes in the summer and if I had to put a mosquito dunk (look it up if you don’t know what that is) in the fountain, I did not want the dog to drink it. Supposedly, dunks are not toxic to pets, but I’d prefer my dog not drink from the fountain. 2 feet might be tall enough to keep him from drinking. Thanks again!

Let us know if you have any other questions! Here is also a diagram: