Need advice

[itsalmosteasy]

I am setting up this 300G tank. I don't like the spray bar it had in it so I took it out. As you can see it has end tank overflows and the previous owner had 2 dursos in each overflow. I was going to reconstruct a spraybar again but I want the tank to but almost touching the wall so that won't work. Any suggestions on how to do the return lines? I am gonna use a sump with a ReeFlo Dart (rated at 36oo GPH at head).

 

[soggysandwich]

the previous owner had 2 dursos in each overflow.

that mean there are 2 holes in the bottom of each overflow? if so you can use 1 hole to drain water and one hole for the return.

 

[itsalmosteasy]

There is a 1" hole and a 3/4" hole. Would the 1" be the drain and the 3/4" the return?

 

[soggysandwich]

There is a 1" hole and a 3/4" hole. Would the 1" be the drain and the 3/4" the return?

yeah i would drain with the larger hole