There are no less than 4 types of fluoride present in our drinking water: calcium fluoride, sodium silico fluoride, sodium fluoride and fluosilicic acid.
Water collection is a worthwhile endeavor for your off-the-grid life, as long as you do your research and take the right precautions before making any decision.
The sheer volume of things that we need to do to be prepared can become overwhelming. When it does, we look to find balance between our preps and our lives.
Drinking seawater will actually put salt into our bloodstream, not remove excess salt from it. When the salt level gets high enough, it will certainly kill us.