TOTO in RVs, with the level of willingness to accept new technology from outside by RVs manufacturers the future of TOTOs in RV’s is already dead, unless it would be lithium powered, but, but but –
“But Strang remains optimistic about the future of toilets in America. "There hasn't been a demand for this type of product in the United States," Strang says. "But there wasn't a demand for Steve Jobs to make a product called the iPhone."”
https://www.npr.org/sections/money/2...he-toilet-race
So, black tank, cassette, incinerator, vacuum, railroad, craposting, a bucket and the TOTO.