Can we have a civilized talk about the U.S. water fluoridation industry?

[HuckleB]

29. The "industrial waste" argument is a classic anti-fluoride trope.

This gets to the bottom of the confusion the antis try to foment:
http://www.cdc.gov/fluoridation/factsheets/engineering/wfadditives.htm

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Another bit from: https://www.thelundreport.org/content/distorted-science-fluoridation

"Another junk science claim is that fluoride is a by-product of the fertilizer industry. This is blatantly untrue. Fluoride is a mineral found naturally in nearly all water sources. Water fluoridation is the practice of adjusting the concentration of fluoride up or down to the optimal level (0.7 ppm) shown to prevent tooth decay. Fluoride is extracted from phosphorite rock, which is also a source for phosphoric acid, a common ingredient in soda pop, and phosphate, which is later used in fertilizers. Fluoride does not come from fertilizer 11. It is regulated by the U.S. Environmental Protection Agency (EPA) and must meet strict quality standards that assure the public’s safety."

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And one other important factor from: http://skeptics.stackexchange.com/questions/3805/is-fluoride-in-water-an-industry-waste-product

"the reagents used are irrelevant, as the flouride is no longer attached to the rest of the compound once it is in solution. [Reference: Year 11 high school Chemistry class]"