ooops...wrong thread
check my reply on your other thread on the sump
If you get a skimmer for in your sump, move the baffles to the left on the drawing of the sump in the other thread to give yourself more room for the skimmer. You want the skimmer to be in a location where the water level stays the same. The right side will always be the same level where the left will get lower as water evaporates.