I ran into some information about the history of water supply disinfection. To stop the spread of Typhoid and Cholera. Water supplies being contaminated. I believe not many people trusted chemicals in their water. Probably why bottled waters were so popular. It all started with a doctor named John L. Leal . He added chloride of lime to the tap water of Jersey City. Interesting stuff. And to think it all started in New Jersey (1908).