Please please...thanks lol. Ok, here is what i am wondering. I have 4 - 1" drains on the back of my tank...drilled near the top to be non-obtrusive in the tank. My question is this. I want to plumb it into two sets of drains with each set going into a 1.5" pvc. I would then like to connect the two sets of 1.5" pvc into one single 1.5" drain going into my sump. My return pump will be a mag12 or a gen x 30. Roughly looking to need to drain about 750-850 gph through this. Do you think one 1.5" outlet would handle it? I currently have it going as two of the 1" outlets into one 1.5" drain having two of the 1.5 drains but would like the nice clean look of only one drain. Let me know what you guys think and if this all made sense.