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post #11 of 17 Old 04-04-2013
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Re: Sinking?

Must have missed it, Minne..

I can say from experience that the most frustrating of all leaks are those from loose fastenings behind the ribs, because there is absolutely very little you can do, from inside the boat, to stop the flow of water... but.. wait... plastic boats probably don't have that problem.

A friend of mine, whose S&S 30 has a reputation for sinking on him whenever his back is turned, now has four 2000gph bilge pumps fitted!! He adds another each time the boat sinks. I guess that makes him feel like he's somehow addressing the problem.. He struck some nasty weather during the race from Melbourne to Geelong back in January and one of the bilge pumps seized up and shorted out. He was lucky - the boat would have caught fire if it weren't for all the water sloshing around down there.

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Last edited by Classic30; 04-04-2013 at 02:02 AM.
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post #12 of 17 Old 04-05-2013
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Re: Sinking?

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Originally Posted by Hartley18 View Post
He was lucky - the boat would have caught fire if it weren't for all the water sloshing around down there.
That's some strange "Luck"

I hope I didn't scare anyone with my previous post on influx rates and bilge pump inadequacies.

The deal is folks need to seriously consider the double pump configuration - a light pump to handle 'normal' leaks low in the bilge, and a heavier pump up higher in the bilge that kicks in when there is a real problem.

That second higher pump should have an alarm on it that will wake the dead.

Lessons learned are opportunities earned.
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post #13 of 17 Old 04-05-2013
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Re: Sinking?

On the prevention and finding of leaks. I made a line drawing of the hull and showed the positions of all through hulls. This is a laminated card and is kept handy. At sea we close all but a few. Tapered plugs on line by each through hull. I have a hand pump mounted on a board with hose in installed as a third manual pump. Just a few ideas.


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post #14 of 17 Old 04-05-2013
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Re: Sinking?

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Originally Posted by capta View Post
So in those unwanted moments of catastrophe, do not lose your head and your boat; think. There may be a simple, easy, if temporary, solution to your immediate problem.
Words to live by, on a boat or any other place.
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post #15 of 17 Old 04-05-2013
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Re: Sinking?

No matter how well you are prepared, the ocean can always supply more water than you have pumps and fuel to handle. Always.

So you do the best you can, and when the weather shows a storm a thousand miles wide, you just don't go out anywhere near it. Especially in a replica of an obsolete boat that wasn't known for weathering storms very well.
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post #16 of 17 Old 04-05-2013
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Re: Sinking?

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Originally Posted by SVAuspicious View Post
This old chestnut comes up all too often. It is itself a safety hazard.
I agree, this makes no sense for a sailboat. I'm wondering if it might make sense for a powerboat. Those 400+ CID engines require a lot more cooling. Still, you threaten your engine if you do it and can strand yourself -- without sails to save you!


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Having participated in the development of US Navy damage control books I strongly agree that the priority is to stop the influx of water.
Hear, hear! That's why I talked about damage control. Get the water intake down to the minimum you can. We'd all like to see zero influx but in practice you never get there. My chiefs used to tell me that that in the general case 50 - 75% was achievable if the team was well trained.

Tom

T. P. Donnelly
S/V Tranquility Base
1984 Islander 30 Bahama
Pasadena, MD
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post #17 of 17 Old 04-06-2013
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Re: Sinking?

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Originally Posted by dacap06 View Post
That's why I talked about damage control. Get the water intake down to the minimum you can. We'd all like to see zero influx but in practice you never get there. My chiefs used to tell me that that in the general case 50 - 75% was achievable if the team was well trained.
On which note, one of the UK sailing magazines did a series of articles and YouTube videos on stopping incoming water. Outstanding information. If I remember right it was amazing how effective sticking a cushion over the hole and holding it with your foot was.

sail fast and eat well, dave
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