Did you put a check valve in the air feed line? I used a solid stopper and drilled my holes VERY tight, and push the stopper in very tight as well, and have NEVER noticed any flow problems. Same flow full or empty. I think the check valve is the main reason for this (keeps constant pressure in the carboy)
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38 Gallon Custom Starphire, Remora Pro, 2 Seio 820's, 24" Giesemann Infiniti 1x250W MH + 4x24W T5, 60lbs Live Rock.
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