advise on plumbing 150

[panaboy95]

I am trying to plan the plumbing for my 150 I am going to be putting together. here is a VERY crude drawing.

the blue lines will be the return though a calfo type of overflow. there will be two 2" drains going to the sump. One 1" drain to the skimmer. I plan to run two return lines over the back at each end. the yellow lines. I have a iwaki rlt70 to use for my return pump.

All the red lines are the closed loop. I will be drilling two 2" intakes in the rear of the tank. I want to run two lines over the top in the front of the tank. the other two I want to drill two holes in the side close to the bottom of the tank. I will be running a dart pump for this.

tell me what you guys think, this is just the first of the planning stages. if anyone has any pics of there systems. I would like to plumb this tank without any powerheads. I am hoping this will be enough flow.

 

[chadfarmer]

i would make the Y into 2 pipes to the sump (depending on how much flow you are going to be running through the sump)

 

[panaboy95]

i may not Y the return. i also might make the third drain 2" and just Y it off to supply the skimmer. the return will be puting out about 1200 gph.