> In previous research, Shane Snyder and Mauricius Marques dos Santos found that these rubber additives can react with disinfectants in simulated drinking water

> In previous research, Shane Snyder and Mauricius Marques dos Santos found that these rubber additives can react with disinfectants in simulated drinking water. Their lab tests generated a variety of chlorinated compounds The actual problem: chlorine Chlorine kills things - it's why they put it in the water, but it is not completely benign to people, and can have all kinds of unintended interactions with other materials. We ended up moving to a home with a well due to health issues with chlorine. UV light provides safer and effective sanitization. It's amazing how much longer toilet tank parts and other plumbing materials last when not exposed to chlorine.