Hidden bilge areas on a 28.5 ???

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Apr 14, 2004
54
Hunter 28.5 Marinette, WI
I posted this on another forum, but thought I'd try and get some opinions and suggestions here on HOW as well. Before launch, the main bilge (where the pump is) was dry as a bone. As soon as we lowered the boat into the water, I jumped on board and did a thorough check of all thru-hulls and the bilge for any leaks. A typical check that I'm sure everyone does when launching. When I looked at the main bilge, there was a little bit of dirty brown water there. I thought the most likely culprit was the keel bolt leaking. I was thinking the brownish color might be from rust between the keel and the hull. I didn't think it a big deal because I didn't detect any alarming rate of water coming in. Only a seeping amount. Well, I did quite a bit of cleaning and organizing all through the boat that first day and when I looked in the bilge afterwards, there was quite a bit of water there. The bilge was about half full. I hooked up the batteries and the pump took care of it in seconds. Now I'm certain the keel bolt is definately leaking, but still not at an alarming rate. I know the pump will take care of it, but I'm a bit irritated with it to say the least. Today I decided to give this problem some attention and see if I can do anything about it. I planned to dry out the bilge, torque all the keel nuts and put a little 4200 under the washers of the one in the main bilge. This is the one that I thought was seeping, the others were dry. Funny thing is, the whole time I was working on it today, it didn't leak. So I didn't bother applying the 4200 and decided to only torque the nuts. The whole time I'm thinking; "What the hell?" "Why did it stop leaking?" So I hop off the boat to run to get a soda at the marina office and when I get back (about 3 minutes), I look in the bilge and there's water again. What the $#@#!! I sponge the water out and then I sit there drinking my soda waiting for more water to seep in. Nothing. Dry. Finally the light went on. (Yes, that's right, I catch on eventually!) When I get off the boat, it rocks a little. So while I'm standing in the cabin watching the bilge, I shift my weight back and forth to get the boat rocking and guess what? I see where the water is coming from. It's running down into the bilge from the starboard side when the boat is heeled to port. Needless to say, I was very happy I don't have seeping keel bolts! But the chase was on. That's when I decided to open the sole. Everything under the sole was clean and dry exept that I could see down in those little holes drilled into the bottom of the stringers. That's where the water is. There's a compartment between this "liner" and the hull. I don't want standing water anywhere in my bilge. The boat doesn't smell foul, but there is a hint of odor when it's been closed up for any duration. I'd like to get this area clean and dried out and prevent any water from getting there again if possible. If anyone has found a way to clean out this area and prevent future water collection there, I'd like to hear about it. I'd also like to hear about what's under the aft-most part of the cabin sole. It's the part just in front of the engine compartment. I'm wondering if this is where I can access that thin gap between the bilge liner and the hull. I'd also like to know how that shower drain is situated. I'm hoping to run a hose from the shower pan to the main bilge if possible. Same for the cooler drain. Any info you folks can provide would be much appreciated.
 
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Bill O'Donovan

My sympathy

The water in the stringers or interior lazerettes, as it were, seeps through drain holes into the bilge. The water orginates up top, very likely from where the top deck is joined with the hull. My solution was to strip out the old rubrail caulk (but don't fool with the rubrail) and recaulk with LifeSeal Clear. It was a miracle that I highly recommend. The toughest part is getting the old caulk out, which can be done using caulk remover from the hardware store. It softens it up nicely.
 
K

Ken

hidden bilge

I am currently wrestling with this problem and last summer had a similar problem, with the sudden appearance of that dark colored organic soup, in my bilge. There is limited access to the bilge from the aft berth. Use a good work light and look through the access hole where your sanitation hoses hook onto your holding tank. From there, look down and forward towards the bow. You can see where this area begins. I also have an "odour", which I am convinced is coming from this mystery bilge. I would love to ask the designer what he or she had in mind, when designing this part of the boat. So far, my only solution has been to spray a strong bleach solution at this, and other access points, which you will find, once you start looking back in this area.
 
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