Simple 2 piece fountain (with an option extender for more height).

I printed in ASA since it will be exposed to direct sunlight. You should be able to print in PLA if you do not let it be exposed to sunlight directly.

Assembly: open the filter cap, replace the existing sphere with the tube that contais the spherical end, place the cap back on with the tube on it. Then screw the remaining elements. Done.

Enjoy the fountain.