Quote from: scgunner on Yesterday at 07:22:25 AMRon,
Noah is correct if you've got a leak in the aft tank that should be easy to determine. Without using it if you have to keep topping it off every few weeks or couple of months the tank is obviously leaking. If that's the case you also have another problem, the leaking tank will fill the pan that it sits in and when the boat heels the water runs to that side comes forward and leaks through the bottom of the bulkhead into the aft cabin. It's also possible if you haven't changed the cockpit drain hoses that could be the culprit, when I changed mine I don't know if they were leaking but they were badly cracked.
On the "Scag Dimple" (I actually had two) there was some really nasty standing water in mine. Using epoxy and filler I faired mine in so the bottom is smooth and any water now simply runs down to the bilge.