O30 bilge project - SailNet Community

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  #1  
Old 01-13-2010
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1934 Chickering
 
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O30 bilge project

I noticed that the bilge bottom is rather soft and feels rather unsupported. (encapsulated keel) It dawned on me that I could make a shallow "well" in the bilge bottom so the pump would only sit in about 1.5" or water there, rather then let it all sit in the bilge itself. The water it gets pretty nasty since my prop shaft is a PSS dripless and the water just sits there unless I make it a point to flush it. sounds doable to moi, whatcha odayers think?
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Old 01-14-2010
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Water ingress to the fiberglass

It sounds like if the bottom of the bilge is spongy, that you might have water infiltration through the resin and glass above the lead ballast. I thinking "digging" a hole might allow even more water into the glass fiber. The idea of evacuating as much of the water resting in the bilge is a good one, though. If the boat is on the hard, you could drill into the glass above the ballast and see if the mat there is dry, and if not , dry it out through the winter, then check the bilge bottom with a moisture meter. If wet, then try light bulbs suspended (dryly) in the bilge for a while, and check again. could take several days or weeks. Once it's dry, seal up the bottom of the bilge by pouring a thin layer of thinset epoxy, and then form a "mini-bilge" where the pickup hose from the bilge pump sits. Be careful pouring the thinset epoxy into the bottom of the bilge, because if the ambient temperature is too high, the mixture could smoke or burn. Better use a slow hardener to keep the temps down, and also allow the mix to fill in any cracks or holes that have been allowing water down by the ballast. This is just my opinion from a fairly minimal amount of epoxy work I have done (bottom job, rebuilding a hatch coaming, etc.) I'd be interested how others weigh in on this.
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Old 01-14-2010
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Well the bilge has water below it and there is a vent pipe that shows the water under there. It it maybe the right thing to do and open the whole bottom of the bilge and seal the top of the lead. Think I'll take some pics of this project.
The bilge on odays like this is about 6" deep and about5-6ft long with 2 or 3 stingers across it, he last one being the one in front of the engine and supporting the engine/galley cabinet.
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Old 01-16-2010
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Water level

I recently ( Last week ) installed a new bilge pump and put a high water alarm in. Bilge has been dry as a bone. Today it has been raining all day, I went and checked the boat this afternoon and had water in the bilge. I looked all around the boat and can not find any sign of leaks. Anyone have an idea of where the water is coming from? What is the " normal " water level? Thanks all.... Rick
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Old 01-16-2010
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Rick,, the aft rails where the flange meets the deck, the stanchions, the windows, the base and top of the steering pedestal, chain plates basically anything that's bolted to the deck, cabin top and cabin sides.
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Old 01-17-2010
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That list is pretty daunting! I've gotten rid of a lot of topside leaks, but have more to go, like the handrails and deck and cabin-top hardware. The hard headliner doesn't help when trying to find leaks.
I also had two teak coaming boxes that had rotted away and let water into the core above and below the boxes (about 1.5-2'), and on both sides back about 10-12", all on a vertical surface, so to replace them with ABS ones, I'll probably have to cut through the inner skin, scrape out the mushy balsa core and replace with something like PolyCore, then reglassing the inner skin.
I also have several squishy places on deck that I need to address; seems like I should strip all hardware topsides, do the repairs, Awlgrip the deck before replacing all deck hardware. But when do I get to sail? I've already spent MUCH more time working on her than sailing her over the couple years I've owner her!
Also, while decomissioning her this fall, I found the carpet in the main saloon was saturated over near the sink, which I have never seen before, especially because there had been no rain for more than a week. The previous week was pretty windy, and I buried the starboard rail a couple of times, and I'm wondering if the sink drain line might have backflowed while submerged and let the water run out of the sink. Any opinions?
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