Or any of the MR series.. I have a question, mine is in the sump. When you put the skimmer in the sump, do you leave it empty and let it fill istself up with water? The reason I'm asking is that when I turn it on it's suppose to only be 1 or 2'' above the black box, mine is about 6''. the gang valve is open all the way and the air valves are closed.
Michael
Michael