dannyboy
PLUHH
As title says, I just got my sump/fuge runnin today. I forget name but I bought what I believed to be a good over flow box. 75 gallon tank, 29 gallon sump/fuge, mag 7 return pump. Seems the over flow box can barely keep up with the diameter of the drain hole, dragging a ton of air into the sump and (burping) alot. Should I install a ball valve on the box drain or reduce the drain hole diameter? Drain is 1 inch, return is half inch w/ ball valve wide open, slight trickel going to refugium.