Icecap 36XL flow

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thom_smith

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Who else has an Icecap sump--in particular an Icecap 36XL. Is there a limit on flow through the sump? I'm pushing 1100gph and noticed my filter sock chamber is backing up. I think it is causing my klirs to run very frequently and ccasionally overflowing the klirs. There is also approximately 1 1/2" difference in water level between the filter sock chamber and the skimmer chamber. See pic. The cutout between sock and skimmer is at the bottom so I would expect the water level to be the same. What gives? Am I exceeding the capacity of the sump? Is there a mod I should consider?

BTW, I also realize I am probably keeping my sump level too high but I find that if I don't do so my return pumps draw air and spew microbubbles into the tank. Could this also be the source of my problem?

20210311_214448.jpg
 
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thom_smith

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Water between sock chamber and skimmer chamber has since equalized on its own. Still seems like there is a lot of turbulance in the sock chamber.
 

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thom_smith

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So occasionally. I'd say couple times a week water appeara to backup in the sock chamber and there is about 1 1/2" difference in water level compared to the skimmer chamber. I can tell when this occurs because the klirs run much more frequently and I can hear water sloshing into the refugium and skimmer chambers through the emergency overflows.
 

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