corner tank filtration

You cant really see my plumbing off the pump, but its flow goes to both the tank and refugium. I have a "T" in the pipe and 2 ball valves regulating flow.. The first valve regulates the flow out of my pump going to the refugium and the tank. The second valve is after the "T" and regulates how much water is going to my refugium. I have about 90% of the flow going to the tank, and the rest to the fuge..
After its in the fuge it flows out and back to the pump return section by means of gravity.

Here is a quick idea that I threw up for you..

 

Thanks that really helps. I thought the flow into the refugium had to be stronger for some reson. I'll start this weekend and post pictures when finished .
Thanks for taking time to get me started on thr right path.