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Post by Max on Dec 18, 2007 22:00:29 GMT -3
Amazing work, Dave.
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Post by Jason on Dec 18, 2007 23:12:30 GMT -3
How could someone test the fluoride coming in their tap water? I have a filter that's supposed to remove it (which hopefully works) to give me peace of mind, but I really have no idea what's coming into the house. Are there any cheap tests or do you need to send a sample off to a university lab somewhere?
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Post by Max on Dec 18, 2007 23:24:03 GMT -3
I'm not sure about a test, but you can buy a water distiller from Sears. They work great and you'd be amazed at the crap that it filters out.
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Post by Jason on Dec 21, 2007 9:56:26 GMT -3
I looked around a bit and it looks like the method you describe uses an ion meter. I've found a few online but the pages are a little vague on the details like how much they cost and where to buy them. They all do the conversion for you and will print out a mg/l or ppm on the screen for you. I will check at the university later today hopefully, they can order anything. I would like to know if the fluoride filter is working, and when it needs replacement.
If you already know which electrodes to use and how to use them, then maybe you could plot a few points on the curve using water with known fluoride concentrations. I see the ppm listed on some bottled water, but I don't know what range there is or how accurate it might be.
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