Catit 2.0 Flower Fountain MINI

I tried out the tips from other customers: removing or not removing the filter, adjusting the little motor door to + then to -, filling the tank more or less. The noise was still there. In the end, I set the little door between + and -, filled the tank to the top, put the filter in, and placed the water fountain on a foam mat on the kitchen tiles. The motor vibrations are absorbed and the fountain is much quieter now. Hope this helps!