HOMES - Researchers explore natural solution to rid household plumbing of dangerous pathogens

(Phys.org) —Microbes are everywhere – thousands of species are in your mouth, and thousands are in a glass of tap water. The ones in your mouth are mostly harmless – as long as you brush and floss so they don't form a biofilm that allows gum disease a path into the blood stream ...

http://phys.org/news/2013-11-explore-natural-solution-household-plumbi