tx29fan
Member
I have a etss800 clone skimmer which runs on a gen-x mak iv pump that is directly behind my sump and tank. The bottom of the skimmer is level with the top of the sump and the 1 1/2 pvc return from the skimmer runs over the top edge and down into the skimmer. I am not getting much skimate. My question is..is the height at which an external skimmer is placed have any effect on the efficiency of it? would moving it down or up help?