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post #1 of 12 Old 10-12-2012 Thread Starter
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seacocks for cockpit drains?

I recently purchased a Spirit 28 (my first real boat).

All through hull penetrations have seacocks, with the exception of those in the aft end: engine exhaust, bilge pumps, and cockpit drains. the exhaust and bilge pumps penetrations are just above the waterline, but the cockpit drains are a little below. For all these systems, I worry that a hose failure underway would leave me without a way to secure the flow (although I would obviously leave them open when away from the boat, limiting their potential value).

Do cockpit drains normally have seacocks? How about bilge pumps and engine exhaust?

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post #2 of 12 Old 10-12-2012
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Re: seacocks for cockpit drains?

No, bilge pumps, exhaust or cockpit drains never come with seacocks.

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post #3 of 12 Old 10-12-2012
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Re: seacocks for cockpit drains?

To the cockpit drains.....I wouldn't say never...my Sabre has seacocks at the cockpit drains. They remain open. They are not easily accessible, and I need to crawl down there and maintain them after I lose another 5 pounds.. :-)

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Re: seacocks for cockpit drains?

Are the drain outlets fully below the waterline? I wouldn't expect them to be although on smaller boats the cockpit floor can be pretty close to the waterline (I had 8 people onboard and the cockpit flooded with a pool of water once).

On my boat they are at the waterline not below it. In addition the hose fitting is a few inches long and comes out at an angle effectively raising the level required to actually get into the boat. So in theory, in flat water, I suspect I would stay afloat with no hoses. Not that this is likely, waves would sink it quickly I'm sure.

But I second the plug. It's probably worth the $10
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post #5 of 12 Old 10-12-2012
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Re: seacocks for cockpit drains?

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Originally Posted by chuck53 View Post
No, bilge pumps, exhaust or cockpit drains never come with seacocks.
Transport Canada Small Vessel Construction Standards TP1332E require seacocks on all hull penetrations except the exhaust.

ABYC Seacocks, Thru-Hull and Drain Plugs, Standard H-27 requires all piping, tubing or hose penetrating the hull below the maximum heeled waterline be equipped with a seacock except for exhaust which must be double clamped.

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post #6 of 12 Old 10-12-2012
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Re: seacocks for cockpit drains?

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No, bilge pumps, exhaust or cockpit drains never come with seacocks.
Not so sure about the cockpit drains, mine has seacocks. I have never closed them for the obvious reasons but its still nice to know they are there and they work.

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post #7 of 12 Old 10-12-2012
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Re: seacocks for cockpit drains?

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Not so sure about the cockpit drains, mine has seacocks. I have never closed them for the obvious reasons but its still nice to know they are there and they work.
Hope you excercise them once in a while or they won't work when you need them.

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post #8 of 12 Old 10-12-2012
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Re: seacocks for cockpit drains?

I have seacocks on my cockpit drains. I leave them open but I cycle them as I go through the boat to close all of the others before leaving.

Do make sure that they are double clamped, and the hose is good.
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Re: seacocks for cockpit drains?

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Originally Posted by bristol299bob View Post
I have seacocks on my cockpit drains. I leave them open but I cycle them as I go through the boat to close all of the others before leaving.

Do make sure that they are double clamped, and the hose is good.
Here is a good example of how a second clamp can do more damage than good. The second hose is not over the nipple on this cockpit scupper and tightening it is actually pulling the hose off the nipple. In fact this is an old mechanics trick to get off stubborn hoses.

seacocks for cockpit drains?-4-g.jpg

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post #10 of 12 Old 10-12-2012
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Re: seacocks for cockpit drains?

All below water line through hulls should have sea cocks, including scuppers.

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