North American toilets are bizarrely complex and seemingly designed to clog. Cross section : https://www.maven.co/wp-content/uploads/2012/07/toilets-00.jpg htt

North American toilets are bizarrely complex and seemingly designed to clog. Cross section : https://www.maven.co/wp-content/uploads/2012/07/toilets-00.jpg https://www.maven.co/wp-content/uploads/2012/07/toilets-00.j... This is because they use a siphon mechanism, which also results in a narrow diameter pipe. Old style ones use an enormous 14L of water per flush and still jam. Other countries use gravity flush which has lower water usage and less blockages, but forces you to periodically clean the toilet bowl. Personally I would rather clean than plunge. This article has a rather biased overview: https://toiletfound.com/siphonic-vs-washdown-toilet-which-is-better/ https://toiletfound.com/siphonic-vs-washdown-toilet-which-is... Personally I find US toilets need to be flushed repeatedly because you don't want to risk a blockage.