Same thing with that ominous Brita filter commercial.
We see a glass, and the toilet flushes, and the water drains and refills, assumingly with toilet water! Words flash across the screen: "Drinking water and your toilet water come from the same place."
Well, thank you for the reminder, Brita. Indeed, I am so priveledged in Canada that my toilet water is clean enough to drink! Actually, here, further filtering your water is actually WORSE for you, because it filters out the calcium.
Go Brita! Way to go with the fear-mongering.