Re Baffled’s Hidden Leak
My Lund Rebel sprang a leak after many years of use. Nearly lost it at the dock! The cause was the plastic bilge pump intake developing a crack over time. Look hard at all of your plastic fittings.
Years ago my last boat an I O had continual water seepage.
This time the cause was a small otter biting the rubber bellows at night. Very frustrating. Nothing seemed to work to deter it.
Old bilge plugs also can be a cause because the rubber degrades over time also.
Years ago one of our know it all lake handyman chose to travel across the lake in spring , in his aluminum boat, figuring the ice couldn’t hurt it. The result was a hole in the bow from the boat being forced thru the ice.
Hope this helps.