I recently purchased a 1991 Sanger FX22. I've noticed that I have to run the bilge pump a lot more than on previous boats I've owned. This is our first direct drive boat and I'm wondering if this is common with this type boat. I've monitored the water coming in from skiers and such and we're not bringing that much water in to the boat, so it has to be getting in from another source. Yes, I've checked the plugs to insure they are sealing. Any ideas on why we're taking on so much water?