It is a commonly held misconception that when flushed, the water in a toilet bowl swirls one way if the toilet is north of the equator and the other way if south of the equator, due to the Coriolis effect. Usually, counter clockwise in the northern hemisphere, and clockwise in the southern hemisphere. In reality, the direction that the water will take is much more determined by the geometry of the bowl and other factors and can flush in either direction in either hemisphere.