We bought a waterfall to encourage our diabetic cat to drink more water. A couple of lessons learned:
If you are in a hard-water area pre-boil the water or you will spend forever removing "tide-marks".
You will get hairs in the water that will finish up blocking the pumps filter (nasty to clean too). Much better
to enclose the pump in a fine-mesh plastic bag to catch the fur.
But it was a great success, and gave him a few extra months.
- Tarantara likes this