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Mystery water in bilge in CAL-29
Just back from a great trip out for an overnight anchorage (saw dolphins, whales, and more).
But I saw again an issue that I've been meaning to post about and pick your collective brains for clues.
I keep my CAL-29 on a mooring ball. Normally her bilges under the cabin floor are nice and dry. However, if I take her out sailing for a day or two (like this last trip) with lots of pitching and rolling and heel her over a lot, there's a couple of inches of water in the forward part of the bilge under the cabin sole at the end of the trip.
So I'm trying to think what it might be from. Here's my thoughts. What am I forgetting?
1. Shaft packing gland. On the CAL29, this would fill the bilge under the engine first, and if it got high enough, go over the baffles and forward into the bilges under the cabin sole. But this isn't the problem here. Monitored during use this trip (and others) and there's just the tiny bit that'd you'd expect. Not even regular drips, just a drop or two every few minutes. Bilge under the engine has some water in it, but no where near the top where it'd overflow into the forward bilge areas.
2. Icebox. Nope, it wasn't running and didn't have anything it it. It wasn't cold. The CAL29's icebox does drain to the bilge, but this can't be it.
3. Condensation from elsewhere. Maybe, but why only see it in the bilge after a long sail? Wouldn't I see that all the time?
4. Water over the bow and going down the chain locker? Maybe, but I don't remember any waves coming over the bow. I don't think this is it.
5. Rainwater leaking down from mast step? Nope, no rain on this trip. On the rare times it rains (in San Diego), as long as she stays on her ball her bilge stays dry even with the rain.
6. Shower drain? The CAL 29 shower drains into the bilge but I don't use it. No water leaking in the shower pan from anywhere that I can see or think of.
7. Something in the head system? Maybe, but the bilge doesn't stink like I think it would if it came from something in the head. Use the head on the mooring ball with no water in the bilge afterwards. Water only shows up after a sail.
What else could it be that only shows up after a rigorous sail?