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Old 12-21-2010, 10:57 PM   #1
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Overflow with dual U-tubes

I recently bought a new overflow cup to replace one I had broken and this one came with two slightly smaller U-tubes instead of the single larger one I had before. I got them both set up and everything is working great, except that one of the U-tubes gradually gets more and more air inside it until it loses suction completely.

Could it be because the flow isn't enough that I need both tubes? It seems to be doing fine with just one tube...
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Old 12-21-2010, 11:22 PM   #2
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yeah that's exactly what it is. I have the same issue, one of the 2 tubes will collect air overtime because there's not enough flow to keep them both fully primed.
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Old 12-22-2010, 10:08 AM   #3
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Add a larger pump
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Old 12-22-2010, 10:14 AM   #4
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second on cmor...
add a larger pump or just remove the other tube...
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