So happy with this fountain for our pets. We have a 10 year old house cat, adult miniature schnauzer and a 4 month old Shichon puppy we We were giving our Shichon filtered water to help prevent tear stains. Now all our pets are receiving filtered water with the fountain.Quick and easy set up there are 5 different rings included for varying number of spouts and the top cap controls the flow. The pump is silent and the fountain is silent too. There is no sound of running water. 
The unit is easy to take apart and wash. I’ve been washing weekly because we have 3 pets using but manufacturer recommends at least every 2 and change filter every 2. My pets adapted to using immediately, I love that we eliminated 3 separate water dishes and are now providing them fresher filtered water.