Well, essentially, it’s that the coriolis effect, while a real thing, is much weaker than most other factors in play. If everything else is neutralised or near to it, the coriolis would indeed be the remaining decider, but that’s very unlikely in practice.
If I remember correctly Mythbusters disproved that. It depends entirely on the way you pull the plug.
So australian toilets have defective plugs, got it!
Well, essentially, it’s that the coriolis effect, while a real thing, is much weaker than most other factors in play. If everything else is neutralised or near to it, the coriolis would indeed be the remaining decider, but that’s very unlikely in practice.
Otherwise people on the equator, their toilet water wouldn’t spin at all? It would just go straight down, no spin.
it spins both ways at the same time