Although I do not agree with the entire video, I do agree with the main idea. The water supply is full of other chemicals besides fluoride. I haven't done any deep research on this, but from what I remember reading, Germans used a different kind of fluoride that was toxic in the ways they needed it to be (as described in the video), however the water supply fluoride is different, yet still bad for your body, just in different ways.
Bottom line is, do not drink tap water. Do not drink reverse osmosis water either. Best water to drink is well water, which is full of minerals. If you cannot get well water, then mineral water, bottled in glass bottles at the source is the best substitute. Make sure it is naturally carbonated though. Perrier contrary to popular belief is not one of them (it's artificially carbonated).
Regular bottled water is just tap water that was (dubiously) filtered at some water purification plant, and sometimes they add a couple of minerals back into it. It'd "dead" water.