cs90

I just set up a cs90 overflow box with a vectra s2. I just ordered the pump to help keep the air from the overflow, but it won’t maintain the level in the back chamber. I’ve tried adjusting the pump but it doesn’t really do anything.

I am complete novice when it comes to sumps and plumbing. I have a 120g tank that's got a Trigger Emerald 34 Sump installed underneath it and a Reef Octopus Varios6 return pump. Since the tank is tempered glass, I have no choice but to go with the overflow method as a means of moving water to my...