Which way does the water go down the plug hole exactly on the equator?

Question

Which way does the water go down the plug hole exactly on the equator?

Answer 1

Contrary to what you may think the water still swirls as it goes down the drain. The shape of the cantainer being drained determines the direction of rotation in this case.

Answer 2

It depends on the geometry of the drain.  The coriolis effect is too small for water going down a drain to notice it.

African kids take advantage of gullible tourists by setting up displays on the equator that demonstrate how the coriolis force pushes water one way down one drain, another way down another drain, and a third drain on the equator straight down.

Answer 3

water in the northern hemishpere goes right and the in the southern hemisphere it goes left.