An American Toilet Flushing North of the Equator

[PaulGardnerStephen]

Well, the real extravagance is not the jets (which use very little water) but using a system that makes it just about impossible to have a dual flush to save water when only urine needs to be flushed. Australia saves many billions of litres of water a year through the use of dual-flush toilets --- very important with our dry climate.

[Organgrinder1010]

A little extravagant in water consumption.

[PaulGardnerStephen]

You're absolutely right, the rotation is due to the rim jets. The vortex motion induced by the jets was patented as a means of helping to keep the bowl clean.

[LongLiveToilets2]

By Design, It's The Angle Of The Rim Jets