I have 2 small dogs that we are constantly having to refill their water bowls for.  We live in the south where it's hot & humid. They love their new Premier Pet Fountain and went right up to it when I set it up.  I love that it holds 128 oz of water and also has filters to help keep their water clean and clear. It's quiet and doesn't make hardly any sound at all when the motor is running.  I am going to order a 2nd one to keep in our camper!