THIS SKIMMER CAN BE PLUMBED IN OR OUT OF SUMP

Out of sump installation:  When using model 3C and up OUT OF SUMP, be sure to plumb the output of the skimmer horizontally back to the sump.  It can not be plumbed upwards to go over the edge. If it is necessary, set the skimmer on a raised platform.  The expansion valve should be at the lowest height when you turn on the skimmer pump.  If your skimmer comes with a gate valve, be sure to have it open all the way, and adjust from that point.  If you follow these instructions, you can plumb your skimmer outside the sump!