This fountain works great, but our cat for some reason would self sabotage his own water supply and lift the top metal plate and flower out of alignment causing it to no longer push water up for him to drink. I have gone through several iterations of these clips as our cat would somehow break them. Eventually I made them thicker and reinforced where the original designs broke. I would recommend 4 total clips for two reasons: (1) it keeps the top as secure as possible and (2) it makes the fountain stable on all sides instead of balancing on the bottoms of only a couple clips.
How to install:
How to remove (i.e. for cleaning):
The author marked this model as their own original creation.