I've read as many posts as I can find (including Bean's original thread) but I can't seem to get some of the subtleties. I've implemented it pretty much as Bean did in his original thread and I've got it tuned and it seems to be stable. It's on a 90 gallon display tank that's two feet by two feet by three feet deep. The inlets are 1 inch street elbows to 1 1/2 inch pipes and valves and 1 inch outlets that exit about three quarters of an inch below the water level in the sump.
However, I'm trying to figure out how to get the water a little bit deeper in the coast to coast over flow box because the water coming over the weir is too loud. I've made it deeper by tuning the valves but it doesn't seem to come back to that higher level after I stop the pump, let everything settle and then restart the pump.
Can anyone explain what adjustments might help me raise the level in the overflow? I'm running the Iwaki MD30XLRT wide open with the valves set as you see them here.
However, I'm trying to figure out how to get the water a little bit deeper in the coast to coast over flow box because the water coming over the weir is too loud. I've made it deeper by tuning the valves but it doesn't seem to come back to that higher level after I stop the pump, let everything settle and then restart the pump.
Can anyone explain what adjustments might help me raise the level in the overflow? I'm running the Iwaki MD30XLRT wide open with the valves set as you see them here.