20 Gal Sump Plan Rev 2

Question is, do you think that this sump design will work?  The middle chamber is where the water will enter the sump from the display.  It then will travel to the second chamber (chamber on the right) where the Skimmer will be housed.  After that it will empty out into the refugium area.  Once it has passed through the refugium, it will then go to the third chamber (the one on the left) and push back up into the tank via a 500gph Mag 5

Edit: See new plans below

I decided that I wasn't going to run a sock.  I might make a little tray out of acrylic and eggcrate though to give me a small space to put some filter floss and other media in chamber 1 though

Here's revision 2, this uses space a lot better, puts the drain and skimmer in the same area, so it will pick up all the junk after it passes through the area that I will build for some filter floss.  This chamber will also contain the heater.

Front Chamber Refugium with Remote DSB

and then the 3rd Chamber with the Return Pump.