WLachnit
Active member
It is a flat run that has to come up and over the sump, so there is a chance for possible air bubbles...we built in some venting outside of the fish room to try to prevent air pockets! Hopefully it works out...here is a pic of the air vents.
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Ahh...yes, I see. I would think the air vents would make a big difference. Keep the updates and pics coming!