[Maverick00]

the overflow box is at its lowest setting. I think where im really confused about this setup is how much flow is too much? I can decrease the pump flow enough to the point where hardly any water is entering the overflow, the problem with this is the amount of air its sucking up not only from the intake but also from the exit down to the sump making the overflow loud on all ends. If i increase pump gph i can make the overflow work harder and shut it up almost completly but this also increases the amount of water sitting in the last chamber (exit chamber) even above the final baffle. im assuming a water level that high in the exit chamber is telling me im exceeding what the overflow is able to handle.. i hope this makes sense...