One morning I noticed my Hydroponic Tower wasn't making noise. I found that the impeller that moves the water cracked apart. After playing in Tinkercad, and 5 tests, my Basil, Dill, Oregano, etc. were never in danger. It would have taken 3 days before I could get one anywhere else.
I suggest PETG instead of PLA.
Public source file at Tinkercad:
https://www.tinkercad.com/things/41YbDEN3HUM
This may fit other pumps since so many are similar.
The author marked this model as their own original creation.