I have a Gecko setup-SSPA-1-P122-P212 with an Aquaflo flomaster XP2 pump. When I turn on the circulation pump, it seems that there's way too much suction coming through the skimmer. When I turn on the jets (same pump) the suction becomes so severe that the pump sucks air and, obviously, doesn't flow properly. The water level is a couple of inches above the skimmer. There is one intake (at the bottom of the tub) and the skimmer running into this pump and no way to isolate the skimmer...there's just one valve for both. Anything I can do about this?

Either your skimmer's door is stuck or you have a blockage at the footwell intake.