Quote:
Originally Posted by George
Hanna 713 PO4 checker(I assume that's the one you have) has an accuracy of +(-)0.04ppm. So your water out of the reactor could be 0ppm or 0.05 ppm. As long as water out of the reactor has a lower PO4 level than the tank water, then your GFO is still good.
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Thanks
I was hoping it would be more accurate than that, but at least it will tell me if my media needs changed or not.