Finished up the plumbing for the return (painted black to match Lok-Line). Installed a union to make for easy access to the drains if needed. It has been a real hope. Love the union there, it can be seen easier in the next photo.
Added 45 elbows to the emergency standpipe, to provide more room to run the return to both ends of the overflow box.
I made a lid for the overflow, doubles as a nice shelf while working on the tank or acclimating a coral.
Bottom of lid, center channel allows the lid to nest in around the return pipe that runs across the top of the overflow.
Note you do not see a lot of plumbing when you look at the tank and stand straight on. The majority of the plumbing is routed as high up in the stand as possible to allow for maximum access to filter socks and to get equipment like skimmers and reactors in and out with ease.