Help with new fish room

[aznnutty]

i was planing on setting this up in my fish room. a few problems i have came across..

how do you make it so theres no bubbles going into the two DT from the overflow off the fuge?

 

[itZme]

Use a system that doesn't allow air into the drains such as the Herbie method with a solid siphon of water and not a Durso that introduces air into the drains.

http://www.reefcentral.com/forums/showthread.php?threadid=344892

Using Bean's method wouldn't work for you as it has a siphon plus a standard durso that allows air into part of the drain water.
I use my overflows from upstairs in my basement displays and have no air bubbles at all.