How many thru-hulls do we really need... - SailNet Community
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post #1 of 17 Old 06-28-2012 Thread Starter
SaltwaterSuzi/CapnLarry
 
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How many thru-hulls do we really need...

Just reading Travelin Easy's thread on his thru hull access cure and it reminded me of a boat which has been on the hard here in Galesville, Md for a couple of years. I don't recognize what brand but it's a sailboat about 44 feet long. There are - get this - 26 (I'll spell it so you don't think it's a typo - twenty six - thru-hulls below the water line ON ONE SIDE. The other side has almost that many.

For the life of me I cannot come up with anywhere near that number of devices which might use that many.

Here's my count:

Fwd head: 2 (1 in 1 out)
Fwd lavatory: 1
Fwd shower: 1
Galley sink: 2 (1 out, 1 salt in)
Anchor hose down: 1
Air conditioning: 2 (assuming 2 ac units)
refrigeration: 1
Engine 2 (Maybe?)
Generator 1
Cockpit or other drains 4 (maybe?)
Aft head: 2 (1 in 1 out)
Aft lavatory: 1
Aft shower: 1

That's 21. I really can't think of any more. And what I thought of was probably ridiculous. And this boat has more than twice that many. Maybe a couple old redundant ones that have been capped off, no longer in use.

I've seen Hatterases (Hatteri?) with thru hull counts like that (still don't know where they all could go) but a sailboat?

Any speculation on what the rest of them could be for?????

Saltwater Suzi and Cap'n Larry


"A sailboat is a fickle mistress. You’ve got to buy her things. You’ve got to understand everything about her. What you don’t know she’ll use against you." -Captain Larry


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post #2 of 17 Old 06-28-2012
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Re: How many thru-hulls do we really need...

A 44 footer could have a lot more drains than that : my 31fter has 2 deck drains on each side athwartships, and two more in the cockpit.

Bristol 31.1, San Francisco Bay
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post #3 of 17 Old 06-28-2012 Thread Starter
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Re: How many thru-hulls do we really need...

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A 44 footer could have a lot more drains than that : my 31fter has 2 deck drains on each side athwartships, and two more in the cockpit.
And they exit below the waterline?

Saltwater Suzi and Cap'n Larry


"A sailboat is a fickle mistress. You’ve got to buy her things. You’ve got to understand everything about her. What you don’t know she’ll use against you." -Captain Larry


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post #4 of 17 Old 06-28-2012
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Re: How many thru-hulls do we really need...

Swiss Cheese 44. Nice lines, a little tender before the wind, and tastes good.

Valiant 32
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Re: How many thru-hulls do we really need...

Quote:
Originally Posted by LarryandSusanMacDonald View Post
And they exit below the waterline?
Very much so, yes.

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post #6 of 17 Old 06-28-2012
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Re: How many thru-hulls do we really need...

if you don't have an inboard you don't need any.

" Some are boat wise and some are other wise"
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Re: How many thru-hulls do we really need...

So if you have an outboard you don't need a head, sinks, holding tank, deck and cockpit drains, and knotlog?

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post #8 of 17 Old 06-28-2012
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Re: How many thru-hulls do we really need...

cockpit scuppers are above, just at my water line. Sink drain above water line. bilge out put above water line, head, is not plummed to the sea. I have no thru hulls below the water line since I pulled the engine 17 years ago, and I love it! Knot log.. I made a chip log I throw over the stern and count out the seconds if I don't belive my instincts.

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Last edited by Capt.aaron; 06-28-2012 at 07:21 PM.
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post #9 of 17 Old 06-28-2012
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Re: How many thru-hulls do we really need...

Your list came up with more than I could have thought of Larry. That many thru hulls just seems absurd. With a little forethought many of them can be eliminated by combining supply thru hulls. We have too many in my opinion, 11, on a 40'. We eliminated two for deck scuppers, cut six openings for direct drains. If I was designing a new boat I'd have a salt water manifold that would supply everything and only require one thru hull, but you still need drains and those aren't so easy to combine due to logistics.

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post #10 of 17 Old 06-28-2012
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Re: How many thru-hulls do we really need...

I have six, three of which are inside the head. One of them doubles for the input for the toilet, and also has a "Y" fitting for the saltwater washdown pump. Another is for the head's sink drain, while the third is connected to the "Y" valve for the toilet. All are housed inside the cabinet beneath the head sink, where they are nearly impossible to reach.

Also have one for the galley sink drain, one for the air conditioner, and one for the engine. These are all readily accessible.

I cannot imagine a boat with 26 thru-hull fittings on each side.

Cheers,

Gary 8)
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