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Old 02/25/2016, 03:02 PM   #3196
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Join Date: Mar 2010
Location: NE Miss
Posts: 608
Good points on the light scattering in water.
This article about the contents of skimmate covers a lot of similar territory.
It concludes 44% of insoluble dried skimmate was CaCO3, but because the system was running a calcium reactor, the article just says it could be forams, coccos, or particles ejected from the reactor.
Since I don't run a reactor, haven't added new salt mix in weeks, have large grained sand, I'd conclude that most anything calcium carbonate in my skimmate was from coccos or forams.

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