My 2004 LE-21 came with 750 gph pumps. I received one laying around from Pete and legend that was throwing water out just as they are supposed to. Now the pump comes on from the sensor, but fails to throw water. The same for my pumpout as well. I'm wondering since they are the originals minus the replacement pump if they are worn out even though they spin but they don't spin high enough????? I thought maybe the livewell pump may have a deteriorated rubber flap, but the flaps were fine. I cleaned them up but kind of wondering if I can get higher rated pumps and just replace them all?????