Notice the woman did not follow the Neti Pot instructions to use boiled or saline water. ...
Even Dr Oz, the media's medico-guru, cautions about using tap water with the neti pot.
Most municipal water systems allow for a certain level of heavy-metal, bacterial, amoebic and similar 'contamination', which can be amplified somewhat further down the line (literally) due to local contamination of feeder lines due to corrosion and such.
Many localities are only now just getting around to remediating problems due to lead pipes.
And so on, and so on ... ad nauseam.
Think of it as the government's eugenics program, weeding out the mentally and physically infirm.Aside #1: Another reason to 'purify' water from mountain streams, given the prevalence of giardia in such water supplies.
Aside #2: Similar holds true for humidifiers. If you don't use deionized/demineralized water, particulate calcium will dust all over your furniture ... and infiltrate your lungs, wreaking a fair bit of havoc.
