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Old 06-02-2013, 10:45 AM   #31
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I was just fiddling with my dual reactor. Cranked the pump the entire way up. The GFO in the first chamber doesn't tumble at all...but the purigen in the second one will. Almost isn't even physically possible.
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Old 06-02-2013, 12:06 PM   #32
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How often have been changing it out? Should be changed out every 2-3 weeks
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Old 06-02-2013, 12:09 PM   #33
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Correct. Though my change out is soon.
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Old 06-02-2013, 02:38 PM   #34
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It takes a lot more pressure to tumble GFO than Purigen. And in my system, even a lot of pressure isn't enough for the GFO to not pack solid.
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Old 06-02-2013, 03:31 PM   #35
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Quote:
Originally Posted by Sniperhank View Post
I was just fiddling with my dual reactor. Cranked the pump the entire way up. The GFO in the first chamber doesn't tumble at all...but the purigen in the second one will. Almost isn't even physically possible.
Weird. Is a line clogged?
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Old 06-02-2013, 08:28 PM   #36
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Nope. If it was the second chamber wouldn't be tumbling.
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Old 06-02-2013, 09:29 PM   #37
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I read that those of us that run high calcium levels to grow hard corals are having the GFO packing up problem. I guess there is a calcium precipitate that causes the GFO grains to get a bit sticky. That and the actual weight of the grains (GFO is heavy) can cause this problem.
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