noisy overflow

I have a 90 gallon Pro Star AIO that we filled up for the first time earlier this week. We cannot get the water level in the filter sock chamber to stay at a consistent level. We've tried dialing up/down the water flow as well as manipulating the level of the return pump and the water is still...

Good morning. I've tried to gain insight from other posts but I think I'm still missing some key insights to solve my problem. Bottomline: Noisy overflow and noisy sucking sounds from my tuning holes (see below). Inability to suitably tune the water height in the side sump to make the noise...

Hey all, So I have the Synergy 16 Ghost Overflow and finally got it dialed in pretty good; it's nearly silent. But I was dealing with a noisy weir; seemingly coming from the water drop between the inner and outer box. I had adjusted the water level in the overflow as high as I could...