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Old 08/12/2016, 07:44 AM   #2
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Join Date: Oct 1999
Location: Rockville MD
Posts: 714
Usually the ball works very well for Rox and HC GFO (like Rowaphos). You can try the screen, but I'm curious if using just Rox with the ball in single pass mode works for you. Could you save the current media mix, and replace it with only Rox as a test? Then if that works, add a tsp at a time of Rowa back into the mix to see if you still get that slowdown.

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