I'ts simple, the principal plumber who introduces the watercloset was inventor of the float valve. he made lot of money selling his invention and missbecame, as inventor of toilet.
His name: Thomas Crapper (born in 09/28/1823), so if U havent bought his invention or appliances or U have, U may undestand.
Y como diria el #gato Riccardo: "voy a miarenero"