INDUSTRY SAYS POLYDADMAC IS SAFE. But it results in “fewer disinfection byproduct precursors.” Discovered in 1957, it is a very high molecular weight polymer.” This is far from the full story.
http://lnkd.in/ddASPkbhttp://lnkd.in/dTyfxpm
linkedin post 2022-06-29 05:12:48
Nigel Fleming
September 21, 2022