Interesting, so we should assume then that you have given up on your youtube experiment
The experiment looks pretty good to me. They've explained how they did it, what they did to mitigate the possibility of the movement being caused by the way the water was put into the pool and they even mitigated the risk of a vortex being introduced when the water was drained by using a valve rather then a plug. They got results consistent with a globe earth so, of course, you have to desperately try to discredit what they found. As I said, strange how you take experiment results which appear to back up your ideas at face value.
There is no dispute that the Coriolis effect is weak and hard to detect on the small scale, there's also no dispute that the science behind the Coriolis effect which causes storm systems to rotate in different directions in the different hemispheres is well understood and caused by the fact we live on a spinning ball. Both of the articles you posted back that up as does the new link you've provided:
But while it is certainly true that this rotation controls the direction of the giant atmospheric vortices of cyclones, which rotate counter-clockwise in the Northern Hemisphere and clockwise in the Southern, the influence of the Earth’s rotation on a micro-cyclone in the bath should be extremely weak
Why do you keep providing links to articles which back up the globe earth?
But yes, the effect on the small scale is hard to detect. The experiment these guys did looks like a pretty good attempt to do so.
As an empiricist and a zetetic I'm sure you are working on repeating these experiments to investigate this matter for yourself.
I look forward to seeing your results.