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Skip Gundlach March 16th 05 04:58 PM

Dorade retrofit
 
Has anyone retrofit dorades to their boats?

We're looking at long periods on the hook, when we'll be off the boat all
day (commuting, in the Caribbean) and are looking at mold and mildew
prevention.

For whatever reason, I seem to be particularly sensitive to mold, having
just had another recurrence of a burst eardrum here at home (clogged
Eustachian tubes, infection follows, pressure builds up and necropsy
finishes it). Thus, making sure we have a free flow of air will be
important.

We'll have full awnings, but don't want to leave the boat open, nor do we
want to go to bars/grates which would allow leaving the hatches cracked/open
but (in my, prior security industry-experienced, view) severely compromising
emergency exit.

Thus the thought of dorades. Two questions about that:

Is it a big deal in our cored deck, or about the same as installing a winch
or other topside item?

If you've done it, are you happy with the outcome?

I'm thinking in terms of a couple forward, facing forward, and another
couple aft, facing aft, when we're at anchor, with caps for in and out when
we're in the Briny (I'd sure hate to dump a bucket of water down on the new
bedding!!). That, I presume, would allow for a pretty consistent air flow
through the boat. Finding somewhere to put them which won't screw up our
deck space any more than is already the case will be the biggest challenge.

So, experience??

Thanks.

L8R

Skip

Morgan 461 #2
SV Flying Pig
http://tinyurl.com/384p2

"Twenty years from now you will be more disappointed by the things you
didn't do than by the ones you did do. So throw off the bowlines. Sail
away from the safe harbor. Catch the trade winds in your sails. Explore.
Dream. Discover." - Mark Twain



Jim Conlin March 16th 05 05:56 PM

I'd look very hard at the Nicro Day&Night solar vents.
They do work, especially if there's wind or sun.
They don't ship water in normal circumstances, but can, in extremis, be replaced with a plug.
They're cleaner and are less likely to snag sheets
They have batteries to keep 'em going all night. A good thing.
Installation is simpler . Burrowing out some core and backfilling with putty is a good idea. Inside trim rings are available.

"Skip Gundlach" skipgundlach sez use my name at earthlink dot fishcatcher (net) - with apologies for the spamtrap wrote in message ...
Has anyone retrofit dorades to their boats?

We're looking at long periods on the hook, when we'll be off the boat all
day (commuting, in the Caribbean) and are looking at mold and mildew
prevention.

For whatever reason, I seem to be particularly sensitive to mold, having
just had another recurrence of a burst eardrum here at home (clogged
Eustachian tubes, infection follows, pressure builds up and necropsy
finishes it). Thus, making sure we have a free flow of air will be
important.

We'll have full awnings, but don't want to leave the boat open, nor do we
want to go to bars/grates which would allow leaving the hatches cracked/open
but (in my, prior security industry-experienced, view) severely compromising
emergency exit.

Thus the thought of dorades. Two questions about that:

Is it a big deal in our cored deck, or about the same as installing a winch
or other topside item?

If you've done it, are you happy with the outcome?

I'm thinking in terms of a couple forward, facing forward, and another
couple aft, facing aft, when we're at anchor, with caps for in and out when
we're in the Briny (I'd sure hate to dump a bucket of water down on the new
bedding!!). That, I presume, would allow for a pretty consistent air flow
through the boat. Finding somewhere to put them which won't screw up our
deck space any more than is already the case will be the biggest challenge.

So, experience??

Thanks.

L8R

Skip

Morgan 461 #2
SV Flying Pig
http://tinyurl.com/384p2

"Twenty years from now you will be more disappointed by the things you
didn't do than by the ones you did do. So throw off the bowlines. Sail
away from the safe harbor. Catch the trade winds in your sails. Explore.
Dream. Discover." - Mark Twain



Armond Perretta March 16th 05 06:28 PM

Skip Gundlach wrote:
Has anyone retrofit dorades to their boats?


Dorades are great. They look "right" when done well, and they do the job
(with some limitations). The downside is that a good installation is
onerous, and an effective dorade (i.e., in the 5" range) is expensive,
especially if you go with bronze or chromed bronze.

First I would not just drill a hole and fit a dorade. You will be most
pleased if you mount a dorade "box" of some sort (either wood or
purpose-built plastic) that retards water ingress, and then mount the vent
itself on the box. This is not simple since most surfaces on a sailing boat
are curved to some degree.

I think you will be happier (and have more leisure time) with the Nicro
solar units mentioned in another post. Get the big ones and start drilling.

--
Good luck and good sailing.
s/v Kerry Deare of Barnegat
http://kerrydeare.home.comcast.net/






Doug Dotson March 17th 05 12:27 AM

You can;t really just mount a dorade without a dorade box. Otherwise
you have no protection againt almost any moisture like rain, etc. A solar-
powered vent is a good choice.

Doug
s/v Callista

"Skip Gundlach" skipgundlach sez use my name at earthlink dot fishcatcher
(net) - with apologies for the spamtrap wrote in message
...
Has anyone retrofit dorades to their boats?

We're looking at long periods on the hook, when we'll be off the boat all
day (commuting, in the Caribbean) and are looking at mold and mildew
prevention.

For whatever reason, I seem to be particularly sensitive to mold, having
just had another recurrence of a burst eardrum here at home (clogged
Eustachian tubes, infection follows, pressure builds up and necropsy
finishes it). Thus, making sure we have a free flow of air will be
important.

We'll have full awnings, but don't want to leave the boat open, nor do we
want to go to bars/grates which would allow leaving the hatches
cracked/open
but (in my, prior security industry-experienced, view) severely
compromising
emergency exit.

Thus the thought of dorades. Two questions about that:

Is it a big deal in our cored deck, or about the same as installing a
winch
or other topside item?

If you've done it, are you happy with the outcome?

I'm thinking in terms of a couple forward, facing forward, and another
couple aft, facing aft, when we're at anchor, with caps for in and out
when
we're in the Briny (I'd sure hate to dump a bucket of water down on the
new
bedding!!). That, I presume, would allow for a pretty consistent air flow
through the boat. Finding somewhere to put them which won't screw up our
deck space any more than is already the case will be the biggest
challenge.

So, experience??

Thanks.

L8R

Skip

Morgan 461 #2
SV Flying Pig
http://tinyurl.com/384p2

"Twenty years from now you will be more disappointed by the things you
didn't do than by the ones you did do. So throw off the bowlines. Sail
away from the safe harbor. Catch the trade winds in your sails. Explore.
Dream. Discover." - Mark Twain





Frank March 17th 05 02:22 AM

Hiya, Skip,

Count me as another vote for solar vents. Unless you just gotta have
the aesthetics of dorades, there's no contest, IMO.

Frank


Jim Conlin March 17th 05 02:43 AM

I think we have some confusion of terminology.

'Dorade' is a successful ocean racer designed by Olin Stephens.

'cowl ventilator ' is a bent funnel which is mounted on a deckplate and encourages air below.

'Dorade box' is a water-trap box on which a cowl ventilator is mounted. Keeps most water from going below. First seen on Dorade.

'dorade vent' is the combination of a cowl ventilator and a Dorade box.

I hope this helps.



"Doug Dotson" dougdotson@NOSPAMcablespeedNOSPAMcom wrote in message ...
You can;t really just mount a dorade without a dorade box. Otherwise
you have no protection againt almost any moisture like rain, etc. A solar-
powered vent is a good choice.

Doug
s/v Callista

"Skip Gundlach" skipgundlach sez use my name at earthlink dot fishcatcher
(net) - with apologies for the spamtrap wrote in message
...
Has anyone retrofit dorades to their boats?

We're looking at long periods on the hook, when we'll be off the boat all
day (commuting, in the Caribbean) and are looking at mold and mildew
prevention.

For whatever reason, I seem to be particularly sensitive to mold, having
just had another recurrence of a burst eardrum here at home (clogged
Eustachian tubes, infection follows, pressure builds up and necropsy
finishes it). Thus, making sure we have a free flow of air will be
important.

We'll have full awnings, but don't want to leave the boat open, nor do we
want to go to bars/grates which would allow leaving the hatches
cracked/open
but (in my, prior security industry-experienced, view) severely
compromising
emergency exit.

Thus the thought of dorades. Two questions about that:

Is it a big deal in our cored deck, or about the same as installing a
winch
or other topside item?

If you've done it, are you happy with the outcome?

I'm thinking in terms of a couple forward, facing forward, and another
couple aft, facing aft, when we're at anchor, with caps for in and out
when
we're in the Briny (I'd sure hate to dump a bucket of water down on the
new
bedding!!). That, I presume, would allow for a pretty consistent air flow
through the boat. Finding somewhere to put them which won't screw up our
deck space any more than is already the case will be the biggest
challenge.

So, experience??

Thanks.

L8R

Skip

Morgan 461 #2
SV Flying Pig
http://tinyurl.com/384p2

"Twenty years from now you will be more disappointed by the things you
didn't do than by the ones you did do. So throw off the bowlines. Sail
away from the safe harbor. Catch the trade winds in your sails. Explore.
Dream. Discover." - Mark Twain





Jonathan March 17th 05 03:56 AM

The Nicro fan units keep air moving all the time, even a dead calm. My
Alberg has two, one mounted in the bow one over the lazaette. The bow
unit died this past spring and I can tell you the difference that little
fan made was definetly noticeable by the crop of mildew I got because of
not replacing it immediately.

When you drill through your core, you should saturate the surrounding
edge of the hole with epoxy resin, use a heat gun to thin it out a bit
and drive it in deeper on the edges. Digging it out and putting in putty
just pushes the unsealed edge back out of sight.

My.02

Good luck,

Jonathan

Skip Gundlach wrote:

Has anyone retrofit dorades to their boats?

We're looking at long periods on the hook, when we'll be off the boat all
day (commuting, in the Caribbean) and are looking at mold and mildew
prevention.

For whatever reason, I seem to be particularly sensitive to mold, having
just had another recurrence of a burst eardrum here at home (clogged
Eustachian tubes, infection follows, pressure builds up and necropsy
finishes it). Thus, making sure we have a free flow of air will be
important.

We'll have full awnings, but don't want to leave the boat open, nor do we
want to go to bars/grates which would allow leaving the hatches cracked/open
but (in my, prior security industry-experienced, view) severely compromising
emergency exit.

Thus the thought of dorades. Two questions about that:

Is it a big deal in our cored deck, or about the same as installing a winch
or other topside item?

If you've done it, are you happy with the outcome?

I'm thinking in terms of a couple forward, facing forward, and another
couple aft, facing aft, when we're at anchor, with caps for in and out when
we're in the Briny (I'd sure hate to dump a bucket of water down on the new
bedding!!). That, I presume, would allow for a pretty consistent air flow
through the boat. Finding somewhere to put them which won't screw up our
deck space any more than is already the case will be the biggest challenge.

So, experience??

Thanks.

L8R

Skip

Morgan 461 #2
SV Flying Pig
http://tinyurl.com/384p2

"Twenty years from now you will be more disappointed by the things you
didn't do than by the ones you did do. So throw off the bowlines. Sail
away from the safe harbor. Catch the trade winds in your sails. Explore.
Dream. Discover." - Mark Twain



Doug Dotson March 17th 05 04:26 AM

I think everybody knows what the disussion is about. Now provide us with
the pronounciation of "dorade"? Is it DOR-ADD or DOR-ADE?

"Jim Conlin" wrote in message ...
I think we have some confusion of terminology.

'Dorade' is a successful ocean racer designed by Olin Stephens.

'cowl ventilator ' is a bent funnel which is mounted on a deckplate and encourages air below.

'Dorade box' is a water-trap box on which a cowl ventilator is mounted. Keeps most water from going below. First seen on Dorade.

'dorade vent' is the combination of a cowl ventilator and a Dorade box.

I hope this helps.



"Doug Dotson" dougdotson@NOSPAMcablespeedNOSPAMcom wrote in message ...
You can;t really just mount a dorade without a dorade box. Otherwise
you have no protection againt almost any moisture like rain, etc. A solar-
powered vent is a good choice.

Doug
s/v Callista

"Skip Gundlach" skipgundlach sez use my name at earthlink dot fishcatcher
(net) - with apologies for the spamtrap wrote in message
...
Has anyone retrofit dorades to their boats?

We're looking at long periods on the hook, when we'll be off the boat all
day (commuting, in the Caribbean) and are looking at mold and mildew
prevention.

For whatever reason, I seem to be particularly sensitive to mold, having
just had another recurrence of a burst eardrum here at home (clogged
Eustachian tubes, infection follows, pressure builds up and necropsy
finishes it). Thus, making sure we have a free flow of air will be
important.

We'll have full awnings, but don't want to leave the boat open, nor do we
want to go to bars/grates which would allow leaving the hatches
cracked/open
but (in my, prior security industry-experienced, view) severely
compromising
emergency exit.

Thus the thought of dorades. Two questions about that:

Is it a big deal in our cored deck, or about the same as installing a
winch
or other topside item?

If you've done it, are you happy with the outcome?

I'm thinking in terms of a couple forward, facing forward, and another
couple aft, facing aft, when we're at anchor, with caps for in and out
when
we're in the Briny (I'd sure hate to dump a bucket of water down on the
new
bedding!!). That, I presume, would allow for a pretty consistent air flow
through the boat. Finding somewhere to put them which won't screw up our
deck space any more than is already the case will be the biggest
challenge.

So, experience??

Thanks.

L8R

Skip

Morgan 461 #2
SV Flying Pig
http://tinyurl.com/384p2

"Twenty years from now you will be more disappointed by the things you
didn't do than by the ones you did do. So throw off the bowlines. Sail
away from the safe harbor. Catch the trade winds in your sails. Explore.
Dream. Discover." - Mark Twain





Jim Conlin March 17th 05 05:45 AM

Sorry for not being clearer. To treat the edge of a 4" hole in a cored
glass deck, you want both to seal the core and to re-establish a structural
connection between the skins. I'd burrow out the core to a depth of 1/2 and
fill the trough with a putty of epoxy, wood flour and cabosil. For
burrowing the trough i'd try a slotting router bit.



"Jonathan" wrote in message
...
The Nicro fan units keep air moving all the time, even a dead calm. My
Alberg has two, one mounted in the bow one over the lazaette. The bow
unit died this past spring and I can tell you the difference that little
fan made was definetly noticeable by the crop of mildew I got because of
not replacing it immediately.

When you drill through your core, you should saturate the surrounding
edge of the hole with epoxy resin, use a heat gun to thin it out a bit
and drive it in deeper on the edges. Digging it out and putting in putty
just pushes the unsealed edge back out of sight.

My.02

Good luck,

Jonathan

Skip Gundlach wrote:

Has anyone retrofit dorades to their boats?

We're looking at long periods on the hook, when we'll be off the boat

all
day (commuting, in the Caribbean) and are looking at mold and mildew
prevention.

For whatever reason, I seem to be particularly sensitive to mold, having
just had another recurrence of a burst eardrum here at home (clogged
Eustachian tubes, infection follows, pressure builds up and necropsy
finishes it). Thus, making sure we have a free flow of air will be
important.

We'll have full awnings, but don't want to leave the boat open, nor do

we
want to go to bars/grates which would allow leaving the hatches

cracked/open
but (in my, prior security industry-experienced, view) severely

compromising
emergency exit.

Thus the thought of dorades. Two questions about that:

Is it a big deal in our cored deck, or about the same as installing a

winch
or other topside item?

If you've done it, are you happy with the outcome?

I'm thinking in terms of a couple forward, facing forward, and another
couple aft, facing aft, when we're at anchor, with caps for in and out

when
we're in the Briny (I'd sure hate to dump a bucket of water down on the

new
bedding!!). That, I presume, would allow for a pretty consistent air

flow
through the boat. Finding somewhere to put them which won't screw up

our
deck space any more than is already the case will be the biggest

challenge.

So, experience??

Thanks.

L8R

Skip

Morgan 461 #2
SV Flying Pig
http://tinyurl.com/384p2

"Twenty years from now you will be more disappointed by the things you
didn't do than by the ones you did do. So throw off the bowlines. Sail
away from the safe harbor. Catch the trade winds in your sails. Explore.
Dream. Discover." - Mark Twain





Russ Barron March 17th 05 05:51 AM

I put 2 dorade boxes on my boat a couple of years ago.
They are great at keeping the cabin fresh in brisk conditions when you
can't crack a hatch. When you have a hard driving rain at anchor the cool
breeze is very welcome.
They don't pass a lot of air in most conditions but they do help. I used
off the shelf teak boxes then cambered them to fit the deck and be level
on top. They also have a vetus mushroom vent that is operable from below
and a SS hoop to keep lines from fouling the cowl. These were a lot of
work but they look good and they work good. I figure whatever you do to
your boat, do the best you can the first time or ya end up doing it over.
Russ


On Wed, 16 Mar 2005 11:58:17 -0500, Skip Gundlach skipgundlach sez use my
name at earthlink dot fishcatcher (net) - with apologies for the spamtrap
wrote:

Has anyone retrofit dorades to their boats?

We're looking at long periods on the hook, when we'll be off the boat all
day (commuting, in the Caribbean) and are looking at mold and mildew
prevention.

For whatever reason, I seem to be particularly sensitive to mold, having
just had another recurrence of a burst eardrum here at home (clogged
Eustachian tubes, infection follows, pressure builds up and necropsy
finishes it). Thus, making sure we have a free flow of air will be
important.

We'll have full awnings, but don't want to leave the boat open, nor do we
want to go to bars/grates which would allow leaving the hatches
cracked/open
but (in my, prior security industry-experienced, view) severely
compromising
emergency exit.

Thus the thought of dorades. Two questions about that:

Is it a big deal in our cored deck, or about the same as installing a
winch
or other topside item?

If you've done it, are you happy with the outcome?

I'm thinking in terms of a couple forward, facing forward, and another
couple aft, facing aft, when we're at anchor, with caps for in and out
when
we're in the Briny (I'd sure hate to dump a bucket of water down on the
new
bedding!!). That, I presume, would allow for a pretty consistent air
flow
through the boat. Finding somewhere to put them which won't screw up our
deck space any more than is already the case will be the biggest
challenge.

So, experience??

Thanks.

L8R

Skip

Morgan 461 #2
SV Flying Pig
http://tinyurl.com/384p2

"Twenty years from now you will be more disappointed by the things you
didn't do than by the ones you did do. So throw off the bowlines. Sail
away from the safe harbor. Catch the trade winds in your sails. Explore.
Dream. Discover." - Mark Twain





--
Using Opera's revolutionary e-mail client: http://www.opera.com/mail/

Peter HK March 17th 05 07:34 AM


"Skip Gundlach" wrote in message

For whatever reason, I seem to be particularly sensitive to mold, having
just had another recurrence of a burst eardrum here at home (clogged
Eustachian tubes, infection follows, pressure builds up and necropsy
finishes it).


I'm a physician so I'm a little confused. Necropsy is a synonym of autopsy
which usually occurs after death. Thus it would seem that your (earthly)
problems are over and worrying about ventilation on the boat is the least of
your concerns ;-)

Necropsy certainly "finishes it".

Peter HK



Skip Gundlach March 17th 05 11:09 PM

Hiya...

Seems I have a misremembrance of terminology.

What I'm trying to convey is that I develop a bit of dead skin where there
used to be an eardrum. As this is the analysis/diagnosis of both vets :{))
I went to separated by more than 4 years, I concluded it was chronic. That
it's a product of mold is a presumption of my current home's circumstance,
as very expensively determined by sophisticated air sampling in and around
the premises to have higher than normal concentrations of same...

I think what I meant to say was having necrotic tissue - is that more
appropriate to the discussion of the symptoms? Or, for the physicians here,
what *did* I want to say? :{))

See my other followup, to myself, for the OnT discussion...

L8R

Skip


--
Morgan 461 #2
SV Flying Pig
http://tinyurl.com/384p2

"Twenty years from now you will be more disappointed by the things you
didn't do than by the ones you did do. So throw off the bowlines. Sail
away from the safe harbor. Catch the trade winds in your sails. Explore.
Dream. Discover." - Mark Twain
"Peter HK" wrote in message
...

"Skip Gundlach" wrote in message

For whatever reason, I seem to be particularly sensitive to mold, having
just had another recurrence of a burst eardrum here at home (clogged
Eustachian tubes, infection follows, pressure builds up and necropsy
finishes it).


I'm a physician so I'm a little confused. Necropsy is a synonym of autopsy
which usually occurs after death. Thus it would seem that your (earthly)
problems are over and worrying about ventilation on the boat is the least

of
your concerns ;-)

Necropsy certainly "finishes it".

Peter HK





Skip Gundlach March 17th 05 11:12 PM

Hi, Y'all,

Well, on the recommendation of nearly every list to which I've posed this
question, solar vents are superior in performance and cost, in particular
for water intrusion.

As it happens, we already have one or two (not sure if the other is a fan or
just a vent), and it seems to keep the boat relatively fresh.

With awnings, however, I don't think they'd work. My thought now is to have
a very low draw muffin fan constantly moving air through, perhaps in the
anchor locker, pulling through the entire boat.

The draw's small enough that it could run all the time, particularly with
the electrical system I'm headed for (1300AH, major solar plus KISS
generator) in the Caribbean.

L8R

Skip

Morgan 461 #2
SV Flying Pig
http://tinyurl.com/384p2

"Twenty years from now you will be more disappointed by the things you
didn't do than by the ones you did do. So throw off the bowlines. Sail
away from the safe harbor. Catch the trade winds in your sails. Explore.
Dream. Discover." - Mark Twain



Johnhh March 18th 05 12:41 AM

Interesting, I have 4 dorade vents and one solar vent. Only the solar vent
leaks, but only when the wind and rain are just right - just enough that I
need to be carefull what I leave sitting under it.


"Skip Gundlach" skipgundlach sez use my name at earthlink dot fishcatcher
(net) - with apologies for the spamtrap wrote in message
...
Hi, Y'all,

Well, on the recommendation of nearly every list to which I've posed this
question, solar vents are superior in performance and cost, in particular
for water intrusion.

As it happens, we already have one or two (not sure if the other is a fan
or
just a vent), and it seems to keep the boat relatively fresh.

With awnings, however, I don't think they'd work. My thought now is to
have
a very low draw muffin fan constantly moving air through, perhaps in the
anchor locker, pulling through the entire boat.

The draw's small enough that it could run all the time, particularly with
the electrical system I'm headed for (1300AH, major solar plus KISS
generator) in the Caribbean.

L8R

Skip

Morgan 461 #2
SV Flying Pig
http://tinyurl.com/384p2

"Twenty years from now you will be more disappointed by the things you
didn't do than by the ones you did do. So throw off the bowlines. Sail
away from the safe harbor. Catch the trade winds in your sails. Explore.
Dream. Discover." - Mark Twain





Bruce on horizon March 18th 05 02:03 PM


I had two of the Nicro solar vents on my C&C 36. They lasted about three
years before the plastic deteriorated and started leaking like crazy. This
was the stainless model so I was surprised to the see the plastic below the
stainless cover fall apart so fast. Nicro told me to take a hike when I
asked them about the problem. Solution was to throw them overboard and plug
the hole...then I sold the boat.


"Johnhh" wrote in message
...
Interesting, I have 4 dorade vents and one solar vent. Only the solar
vent leaks, but only when the wind and rain are just right - just enough
that I need to be carefull what I leave sitting under it.


"Skip Gundlach" skipgundlach sez use my name at earthlink dot fishcatcher
(net) - with apologies for the spamtrap wrote in message
...
Hi, Y'all,

Well, on the recommendation of nearly every list to which I've posed this
question, solar vents are superior in performance and cost, in particular
for water intrusion.

As it happens, we already have one or two (not sure if the other is a fan
or
just a vent), and it seems to keep the boat relatively fresh.

With awnings, however, I don't think they'd work. My thought now is to
have
a very low draw muffin fan constantly moving air through, perhaps in the
anchor locker, pulling through the entire boat.

The draw's small enough that it could run all the time, particularly with
the electrical system I'm headed for (1300AH, major solar plus KISS
generator) in the Caribbean.

L8R

Skip

Morgan 461 #2
SV Flying Pig
http://tinyurl.com/384p2

"Twenty years from now you will be more disappointed by the things you
didn't do than by the ones you did do. So throw off the bowlines. Sail
away from the safe harbor. Catch the trade winds in your sails. Explore.
Dream. Discover." - Mark Twain







Brian Whatcott March 19th 05 01:13 AM

On Thu, 17 Mar 2005 07:34:20 GMT, "Peter HK"
wrote:


"Skip Gundlach" wrote in message

For whatever reason, I seem to be particularly sensitive to mold, having
just had another recurrence of a burst eardrum here at home (clogged
Eustachian tubes, infection follows, pressure builds up and necropsy
finishes it).


I'm a physician so I'm a little confused. Necropsy is a synonym of autopsy
which usually occurs after death. Thus it would seem that your (earthly)
problems are over and worrying about ventilation on the boat is the least of
your concerns ;-)

Necropsy certainly "finishes it".

Peter HK

I imagine Skip has necrosis in mind.
Pressure which reduces blood flow
with the usual consequence

Brian Whatcott Altus, OK

Graeme Cook March 19th 05 08:12 AM

We took the dorades off Leonidas ten years ago and then used four types
of solar vents. None worked very well. They all leaked badly. In
ideal conditions they provided only small amounts of air, but their
batteries frequently were too low, they do not work in sultry overcast
conditions and then they just stopped working. The makers/agents were
uninterested in problems.

We have gone back to dorades, and if you install them I suggest:
* biggest cowls you can find (sucks in more air),
* rotating cowls so you can orientate them to the wind,
* we face them away from the wind in stronger winds & they then suck
air out of the boat,
* when boat is left in marina we face them in opposite directions to
cope with wind shifts,
* "three legged" rope guards over all cowls,
* insect screens inside the boxes,
* fairly large dorade boxes as they work as water separators, and this
requires space,
* some way of sealing the vent into the boat (eg screw down mushroom
cap). The traditional pair of sox is suboptimal.

Best of luck and fair winds

Graeme
sv Leonidas



Jim Conlin wrote:

I'd look very hard at the Nicro Day&Night solar vents.They do work,
especially if there's wind or sun.They don't ship water in normal
circumstances, but can, in extremis, be replaced with a plug.They're
cleaner and are less likely to snag sheetsThey have batteries to keep
'em going all night. A good thing.Installation is simpler .
Burrowing out some core and backfilling with putty is a good idea.
Inside trim rings are available. "Skip Gundlach" skipgundlach sez use
my name at earthlink dot fishcatcher (net) - with apologies for the
spamtrap wrote in message
... Has anyone retrofit
dorades to their boats?

We're looking at long periods on the hook, when we'll be off the

boat all
day (commuting, in the Caribbean) and are looking at mold and mildew


prevention.

For whatever reason, I seem to be particularly sensitive to mold,

having
just had another recurrence of a burst eardrum here at home (clogged


Eustachian tubes, infection follows, pressure builds up and necropsy


finishes it). Thus, making sure we have a free flow of air will be
important.

We'll have full awnings, but don't want to leave the boat open, nor

do we
want to go to bars/grates which would allow leaving the hatches

cracked/open
but (in my, prior security industry-experienced, view) severely

compromising
emergency exit.

Thus the thought of dorades. Two questions about that:

Is it a big deal in our cored deck, or about the same as installing

a winch
or other topside item?

If you've done it, are you happy with the outcome?

I'm thinking in terms of a couple forward, facing forward, and

another
couple aft, facing aft, when we're at anchor, with caps for in and

out when
we're in the Briny (I'd sure hate to dump a bucket of water down on

the new
bedding!!). That, I presume, would allow for a pretty consistent

air flow
through the boat. Finding somewhere to put them which won't screw

up our
deck space any more than is already the case will be the biggest

challenge.

So, experience??

Thanks.

L8R

Skip

Morgan 461 #2
SV Flying Pig
http://tinyurl.com/384p2

"Twenty years from now you will be more disappointed by the things

you
didn't do than by the ones you did do. So throw off the bowlines.

Sail
away from the safe harbor. Catch the trade winds in your sails.

Explore.
Dream. Discover." - Mark Twain




[email protected] March 19th 05 04:51 PM

What are, "three legged" rope guards over all cowls"?
Thanks,
Greg Luckett


Armond Perretta March 19th 05 05:02 PM

wrote:

What are, "three legged" rope guards over all cowls"?


Another term is "dorade guards." Look he

http://www.marinershardware.com/ProdGuard.htm

--
Good luck and good sailing.
s/v Kerry Deare of Barnegat
http://kerrydeare.home.comcast.net/






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