Model "D" Sump
This sump had to be a creative one, because #1) it was for someone new entering into the hobby and didn't have previous experience with any reef keeping, and #2) the design of the stand made things very difficult to fit anything in of decent size. Originally, it was to be a one-piece unit, but in mid-stream the skimmer was replaced with a different sized unit, and everything was reworked. The base unit holds the skimmer and the return area. Above it, a refugium drains diagonally into the return area.