- Nov 6, 2020
- Reaction score
- Lancaster County, PA
A story about water and beer. Pilsner Urquell is a fairly famous beer from Pilsen in the Czech Republic. Some decades back they developed a problem with their water supply and discovered their water mains were hollowed logs and had rotted to a great extent. So they were replaced with modern plumbing and people commented the beer did not taste right.Before water treatment technologies became common, deaths due to water-borne microorganisms were higher than deaths due to cancer or heart disease. That changed when some cities began to filter their drinking water and then started to chlorinate it. Philadelphia, PA was one of the first cities to institute chlorination in drinking water.
You can see in this graph that typoid deaths decrease slightly after filtration, and decrease dramatically after application of chlorination:
View attachment 31173
The first arrow shows when filtration was applied in 1909, and a remarkable drop when chlorination started in 1913. Other diseases like cholera and dysentery followed the same pattern. They knew long ago that contaminated water could cause disease and daeths.
Oh, I forgot to mention the old wooden mains ran under what had been a livery stable for ages.