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 Re: What to Test For: Old/New strip mine pond
#557512
Apr 18th a 03:49 PM
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| by ewest |
| ewest |
My guess from results from my experience (different type of test kit) is when it goes from blue/green to full light red. Looks like 30-40 ppm. But that is from pics and as we all know color is based on available light.
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