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post #11 of 46 Old 01-04-2013
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Re: rain water entering bilge thru mast.

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Originally Posted by L124C View Post
Wow! Unless you have a very shallow bilge, thats a lot of rain entering through your mast! We've had high winds and a lot of rain last month. My bilge hasn't filled enough to even activate the bilge switch (two inches), including the drip from the prop shaft.
Why didn't the auto bilge pump dump your water before it froze?
Good solution. Obviously the boat the boat was on the hard, correct?
The OP didn't mention Ice. Ice not withstanding, I still don't see it as a "problem".
In any case....it's good to be in California!
On the hard, so you can't leave the bilge pump activated around here in freezing temps. To some degree, I think that first winter was bad luck. There were serious rains several times for the first few weeks we were on the hard, then freezing temps at night. By the time I got out to find it, there was nothing I could do to get it out, as it was frozen solid. Therefore, it just kept building a little at a time all winter.

It is a fairly flat bilge, with one low sump to collect water at the pump. Albeit, the flat bilge is still approx 3 ft below the salon sole. But still, there was 6 to 8 inches of ice throughout an area approx 10x10 ft. It totally overwhelmed the couple of gallons of antifreeze I left in the deep bilge. Major concern at the time.


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post #12 of 46 Old 01-04-2013
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Re: rain water entering bilge thru mast.

On the keel stepped mast versions of our yacht, the mast was fitted with an injected foam plug that extends to just above the collar of the mast boot at the deck level with four 1/4" drain holes, one each fore'n aft and side-to-side. Several owners have also made "Spar-Tight" plugs at the partners to prevent water penetration along the face of the mast beneath the boot when that is not entirely effective.

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post #13 of 46 Old 01-04-2013
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Re: rain water entering bilge thru mast.

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Originally Posted by L124C View Post
... If so, Couldn't you simply have a space heater in the salon with a thermostat set at 40 degrees?
Better check your marina/yard rules carefully (and your own insurance policy) -- most yards prohibit leaving power connected to boats in storage, and it isn't an arbitrary "let's screw with the boat owners" kind of rule.


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post #14 of 46 Old 01-04-2013
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Re: rain water entering bilge thru mast.

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Originally Posted by L124C View Post
Nice job and great documentation, but that's a lot of work, and the less holes in the bottom of my boat the better AFAIC!
As long as the water stays in the bilge, what harm does Ice do? Will it crack the bilge/hull? If so, Couldn't you simply have a space heater in the salon with a thermostat set at 40 degrees?
I know!...Treat your bilge to a pint of Bacardi's 151!
I was worried that it would push stringers apart for starters. When it started to back flow in the genset locker, it came about an inch up the stands. An engine and electrical equi encased in ice for months just can't be good for it.

There is no way that a space heater would keep the ice melted, despite thenfact that they aren't allowed. Even if you can get the cabin air to 40+, the keel is a huge heat sink and the ice on top just doesn't melt. Ask me how I know!


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post #15 of 46 Old 01-04-2013
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Re: rain water entering bilge thru mast.

Quote:
Originally Posted by svHyLyte View Post
On the keel stepped mast versions of our yacht, the mast was fitted with an injected foam plug that extends to just above the collar of the mast boot at the deck level with four 1/4" drain holes, one each fore'n aft and side-to-side. Several owners have also made "Spar-Tight" plugs at the partners to prevent water penetration along the face of the mast beneath the boot when that is not entirely effective.

FWIW...
Selden have a detailed instruction on this found here http://selden.se/_download.cfm?id=66...=595-814-E.pdf

It is a combination of a sealing block inserted from the bottom of the mast and a sealing compound to close the gap between the mast and the block.

From the linked pdf
Quote:
Warning! Check that the internal sealing block has not been moved from its original position or
distorted. See fig 3a. If the gap between block and mast is too wide, the low viscosity sealing
compound will run completely through and fail to make a seal.
If the leakage is wide, or if the extent of the leak is not known. Divide the sealing compound in two
sets. Start with mixing smaller an amount (~200ml) and pour it into the mast. Check that the
sealing compound does not run thru the mast and into the mast. (If so remove the sealing
compound immediately). After the sealing compound has set continue the sealing according to the
instruction.
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post #16 of 46 Old 01-04-2013
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Re: rain water entering bilge thru mast.

if you have a wood boat, salt the bilges.
with a keel stepped mast, you are supposed to change the mast boot periodically. when you change the mast boot, the leaking stops. novel idea, ye think?
mine leaked UNTIL I CHANGED OUT THE MAST BOOT!!!!
i used a rubberized canvas product much like sunbrella's waterproof material. works great. dont forget the silicone to keep water out of the top of boot--i use silicone also on bottom--no water comes into boat from this pathway. try it.


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post #17 of 46 Old 01-04-2013
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Re: rain water entering bilge thru mast.

Not sure the mast boot makes much difference with that 70 ft tall furling slot running the length of the stick.


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post #18 of 46 Old 01-04-2013
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Re: rain water entering bilge thru mast.

lol what a design flaw. is much better to have nothing coming below the top of mast boot. the furling slot sounds like a trouble waiting to happen.


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Re: rain water entering bilge thru mast.

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Originally Posted by zeehag View Post
lol what a design flaw. is much better to have nothing coming below the top of mast boot. the furling slot sounds like a trouble waiting to happen.
Says you. I love it.


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post #20 of 46 Old 01-04-2013
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Re: rain water entering bilge thru mast.

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Originally Posted by Minnewaska View Post
Says you. I love it.
is a good thing--i love my drier bilges...


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