So it seems like the theory is that it is specifically rubber seals found in plumbing fixturse that are leaking the additives into the water? It does beg the qu

So it seems like the theory is that it is specifically rubber seals found in plumbing fixturse that are leaking the additives into the water? It does beg the question whether or not something like pex or press-fit copper pipes (with the rubber o-rings) also leaks additives. The researches also say the additives could come from tire pollution.