I'm in the lengthy process of setting up my Korallin 1502 reactor. I just got through connecting the Tom Aqua lifter pump intake to the prefilter and my sump. The output goes to the reactor. What I see is the Aqua lifter pulsing and bringing in air. By pulsing I mean go on, then spit water and air, stop, cycle over again. Does anyone else have this problem, or is this common with this pump. All my hose connections appear to be pretty good. Maybe the seal is bad on the lid of the prefilter?



