Coincidentally, even though it isn’t the exact topic I actually have this exact same question. As far as I can tell the stuffing box is always going to drop a bit when under way (or is that incorrect?). If that is the case then the water is always going to end up in the cockpit. How is this supposed to work? I don’t want to drill a hole in the pan under the engine so it will drain because I want that pan to catch any oil or fuel that may leak.