OK, a little catch up. First off, I finished the plumbing from the overflow box to the sump. Here you can see the two 1.5" drains. The lowest section of PVC was cut in a spiral spray bar fashion (not pictured) so that if the water level rises in the sump for any reason, water would still drain out fairly quietly from the drains. Eventually I will attach filter socks to these drains for mechanical filtration, since I don't want to have to siphon out the sump very often. You can also see that I've been running carbon since introducing the LR.
<img src="http://i16.photobucket.com/albums/b27/mjosephs/179g%20rimless/drainsreturns.jpg">
The green hose is Eheim tubing returning water back from the chiller via an Eheim 1262, and this ascends through the overflow box and into the tank via LocLine. The right-most return under the overflow is 1" plumbing that currently dead-ends with a SUBV. That will eventually connect to the primary sump return pump, which to date I still do not posess.
I also received my skimmer feed pump, a Hydor L35, and the skimmer was fired up 3 nights ago. I placed the pump in the chamber just beneath the overflow drains. The clear 1/2" vinyl tubing connects the pump to the Deltec skimmer, which you can see better in this next photo.
Here it is from the side, showing also how I had to angle the overflow drains so that they'd place the water more centrally in the sump chamber as opposed to directly against the sump's back wall.
The skimmer has pulled out what I would describe as clay. There's almost no odor, and I'm wondering if this is just proteinaceous material released from the live sand? At any rate, here's what it looked like when I cleaned it out tonight for the 1st time.
Now that it's been cleaned, I'm starting to see what I think is the real deal skimmate -- nog!! A 3-day break in period seems about right to me, eh?