noisy weir

Hello All, I'm having a issue eliminating the "whistling" of the water flowing through the weir teeth on my overflow. Not sure if whistling is the correct description of fast moving air noise through the weir teeth is better. I have a ESHOPPS-L overflow box. My return pumps are a Varios-2 and...

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...