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For a sump all I have is a twentys gallon sump with no bubble trap but I don't really have the bubbles in the sump and the oBergius is kind of noisy any suggestions
you aren't getting microbubbles from that. that is your drain pipe. you are picking them up in the return pump.
do you have a piece of rigid airline tubing that slides into that hole in the top of the standpipe? i believe there is supposed to be one, and that is what you move up and down until it gets quiet.