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The process of disolving calcium into solution generally precipitates phosphate. I run my effluent through a GFO reactor. And BTW, if you use media like Schuran or the Gen-X knock-off, soaking it in RO/DI water prior to using it will draw off quite a bit of PO4. What I do is soak it in a 5g bucket and test the water. Then I drain it and soak it again. When the test shows zero, I then put it in my reactor. This little tip came from Steve Weast on his last visit, and his point was, why burn the GFO when you can soak the PO4 out of the media? This allows the GFO to last a lot longer.
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Jonathan--DIBS Breeder and Card carrying member of the Square Skimmer Brigade
(Click on the Red House to see my pics garage)
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