We need this

Boo hoo

Consider this- there are many general differences between cultures. Using America as an example- Takata is a Japanese seat belt maker. Late 90’s early 2000’s they had a crazy high warranty failure rate but only in America. They sent engineers to investigate. What they found was the American seatbelts had particulates in the mesh weave causing failure. The Japanese didn’t tend to eat in their cars the way Americans did and didn’t have the levels of contaminants on their clothes and hands that Americans did on average. These cultural differences caused higher product failure rates. The first Toyota sold in America couldn’t make it out of LA on its nation wide road trip because it lacked the power to make it over the hills out of LA. Japan didn’t have the types of long straight graded roads we do so cars weren’t designed for American freeways.

With these sink toilets- the water that goes down the sink flushes the toilet. So things like toothpaste, mouthwash, chunks of food, soaps, grease or dirt if you’re hands are very dirty, and so on- will all sit and collect in your toilet tank, and be pushed through the toilet when you flush. Things like soap that leaves scummy residue or other particulates can clog the plumbing, and however long you go between flushes is how long whatever you put in the sink will stew in your bathroom.