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Old 05-03-2011, 15:33   #1
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Additional Cockpit Drains . . .

I want to munt them sideways...should they go out tramsome or side hull???
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Old 05-03-2011, 16:26   #2
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Re: additional cockpit drains...

Either one has potential problems, IMO, from waves slapping the hull and letting in nuisance water. If the footwell drains that you have don't do this, there's your answer. The safe bet is to have your new drains exit the hull about like and where the existing ones do.

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Old 05-03-2011, 17:08   #3
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Re: additional cockpit drains...

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Originally Posted by Mark Johnson View Post
Either one has potential problems, IMO, from waves slapping the hull and letting in nuisance water. If the footwell drains that you have don't do this, there's your answer. The safe bet is to have your new drains exit the hull about like and where the existing ones do.

Mark
my drains go strait down...I dont want to enlarge them...prefer instaling 2 extra drains, one on each side. will put a one way valve...so transome or side hull no problem?
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Old 05-03-2011, 17:29   #4
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Re: additional cockpit drains...

We've got the usual suspects in the fwd end of the cockpit.....they go straight down. We've also got a 2" mushroom thru-hull fitting at the aft end that connects to another 2" mushroom thru-hull fitting in the transom. No problems with it at all.
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Old 05-03-2011, 17:40   #5
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Re: additional cockpit drains...

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We've got the usual suspects in the fwd end of the cockpit.....they go straight down. We've also got a 2" mushroom thru-hull fitting at the aft end that connects to another 2" mushroom thru-hull fitting in the transom. No problems with it at all.

thats what I will do...its cheap and easy...will see how it goes from there.

cheers
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Old 06-03-2011, 15:43   #6
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Re: additional cockpit drains...

We have a 2 inch pipe that goes from one side of the boat to the other, with two drains teed into it from the cockpit floor, all about 3 inches above waterline. (there is a flexible bit in the middle so as not to create hard spots)
Drains well, but going to windward in a chop, if a wave hits the windward side, water rushes down the pipe and hits the water that is sitting in the leeward end. This sends a gusher into the cockpit. usually in thse conditions there is some spray flying around anyway.
When we have a duckboards in the cockpit there is no problem, but otherwise a nuisance.
If the pipe does not go right across, then the windward one works as a real water collector.
I think it would be much better if the drains did not exit at the side, but at least we have no holes below the static waterline to worry about.
Regards, Richard.
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Old 06-03-2011, 16:06   #7
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Re: additional cockpit drains...

My personal opinion would be aft. Out of thousands of designs, I am yet to see a designer that has mounted them athwartships-Thats gotta say something. Aalthough someone here just mentioned that they have them that way.. But the main thing is the larger the better. If ever youre pooped, you will want that water out of there as fast as possible.
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Old 06-03-2011, 16:14   #8
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pirate Re: additional cockpit drains...

Your best bet is aft if the existing set-up are forward in the cockpit... ideally they should be fore and aft to clear the water away quickly as the boat pitches...
the drains are working all the time then
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Old 06-03-2011, 16:23   #9
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Re: additional cockpit drains...

Put additional cockpit drains out the tramsome with rubber flappers to allow water to only go out and not come in.

Mark
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Old 06-03-2011, 16:32   #10
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Re: additional cockpit drains...

jobi-- look really hard--you may find the cockpit drains are there and large enough-- you have a small well--mine go thru the steering quadrant room to out under the boat and they are each 2 inches diameter......look under the teak grating in the cockpiit well-- should be large and in the forward corners.....
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Old 06-03-2011, 18:31   #11
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Re: additional cockpit drains...

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jobi-- look really hard--you may find the cockpit drains are there and large enough-- you have a small well--mine go thru the steering quadrant room to out under the boat and they are each 2 inches diameter......look under the teak grating in the cockpiit well-- should be large and in the forward corners.....

zee these are for my H28 not the islander!!!
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Old 06-03-2011, 18:32   #12
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Re: additional cockpit drains...

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Put additional cockpit drains out the tramsome with rubber flappers to allow water to only go out and not come in.

Mark
Thats the only way I want it
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Old 06-03-2011, 18:35   #13
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Re: additional cockpit drains...

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zee these are for my H28 not the islander!!!
whew! was worried for a minuet....
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Old 09-03-2011, 13:01   #14
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Re: additional cockpit drains...

Another thing that you may want to consider is to mount them a bit higher vertically. This should help with water coming into your cockpit through these scupper drains but would be there for occasions when you original floor drains became overwhelmed.

Just a thought,
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Old 09-03-2011, 13:15   #15
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Re: additional cockpit drains...

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Originally Posted by Extemporaneous View Post
Another thing that you may want to consider is to mount them a bit higher vertically. This should help with water coming into your cockpit through these scupper drains but would be there for occasions when you original floor drains became overwhelmed.

Just a thought,
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That's actually something we did. The normal ones that are pre-installed work for 99% of everything, but they also get gummed up with debris and need to be cleaned out fairly often. The higher capacity ones we put in are mounted sideways about an inch off the bottom of the cockpit sole. Nothing every goes into them unless there's a pooping situation (which knock knock has never happened and I'd like to keep it that way).

The existing drains seemed plenty big enough but I never liked how they were often 1/2 clogged with hair or the stray banana peel.
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