I also thought about making 2 15" spray bars andspliting it to these w/o an open return pipe, my concern is this will probally cause my return pump not to keep up with overflow, I know I could slow it down a little also, just seems like defeating the purpose of a good fast water exchange. Im thinking my 600gph with my 29 gal tank will change the tanks water out with sump/fuge a little over 20x an hour so if i did slow the overflow down a bit, it MIGHT not efect it much.
if i made my return setup w/dual spray bars at same size and setup i would in the DT, and put 29 gal of water in my 120 qt cooler and see how long it takes to empty it out then I could figure out what I would be working with...........I think lol
