Well three knuckles a bleedin' later, took off the hoses and pvc fittings that lead from the pump and return jet to the side of the multiport valve. The one from the pump did have a small leak that I hadn't seen because it was dripping into a bucket containing extra de--which never looked wet until you touched it, apparently whoever originally did this--had issues about plumbers tape, all of it was ran backwards (so when the pieces were threaded back on all the tape was bunched up and not in most of the threads) fixed that and the leak. Let it run for 4 hours. Now it's to the point where if I open the air valve all the way for 15 seconds, (timed it) the air is fully out, psi reads 10-15 and I can shut it off without even a belch through the skimmer or anywhere else. Now if this sounds like normal procedure for one of these, then you guys were right about it sucking air through very small places and we have it fixed--if it doesn't sound right then please let me know, like I said this is my first de filter, so I am depending on the experience here--which let me tell you has been excellent so far.