So I am running a basement sump with some longer horizontal run to it...Vertically I'll be looking at about 10 foot of rise with a long horizontal run as the sump will be not directly below the tank. That being said, it has 3 x 1" drains and 2 x 3/4" returns...I had originally planned to run just one larger drain, having the three converge into a 2" or do I need a 2 1/2" drain and then runnning a 1 1/2" return having it branch once I get it through the floor...thoughts?