[Rhodes22-list] Condensation
Chris Cowie
ccowie at cowieassociates.com
Tue Dec 1 06:38:57 EST 2009
Dave
The nicro vent seems like A good option. I plan to try it.
Chris Cowie
Cowie Associates PC
On Nov 30, 2009, at 6:28 PM, "David Bradley" <dwbrad at gmail.com> wrote:
> Chris, have you tried the solar powered Nicro vent?
>
> Chances are, your boat is heating up in the day and the cool air at
> night on
> the outside of the hull is creating the condensation inside. You
> won't be
> able to make the boat airtight. Venting the moist air out with an
> improved
> airflow seems to be working for me.
>
> Dave
>
> On Mon, Nov 30, 2009 at 2:21 PM, Chris Cowie <ccowie at cowieassociates.com
> >wrote:
>
> > Lee:
> >
> > Thanks for the input. My bilge was bone dry all season until
> recently. I
> > think it may have to do with the temperature change. I previously
> noted
> > what appeared to be a pretty constant leak/water coming at the
> rail fitting
> > but suspected it might be coming from a nearby shroud connection
> or other
> > thru deck fitting. I used some plumbers putty to form a dam
> around the rail
> > and then shroud fittings and found NO water infiltration at both
> of these.
> > I did the same exercise at the top of the fixed side port and the
> water
> > immediately drained from the dam. Not sure where the water went,
> around the
> > port gasket or between the inner and outer deck panels? The rail
> fitting
> > that sometimes shows dripping water is located uphill from the
> fixed port
> > but maybe the moisture migrates up to that area. I will continue
> to mop out
> > the bilge if required and keep an eye on things. Maybe I should
> stop
> > cleaning the boat so often and let a little dirt fill those nooks
> and
> > crannies.
> >
> > Christopher P. Cowie
> >
> >
> > 4400 MacArthur Blvd, NW
> > Suite 300
> > Washington, DC 20007
> > 202.342.2711
> > 202.342.2691 fax
> > 202.270.1470 mobile
> >
> > [ccowie at cowieassociates.com]
> > cowieassociates.com
> >
> >
> > -----Original Message-----
> > From: rhodes22-list-bounces at rhodes22.org [mailto:
> > rhodes22-list-bounces at rhodes22.org] On Behalf Of KUHN, LELAND
> > Sent: Monday, November 30, 2009 4:45 PM
> > To: The Rhodes 22 Email List
> > Subject: Re: [Rhodes22-list] Condensation
> >
> >
> > Chris,
> >
> > I have 150' of anchor rode in the tray that I'm sure soaks up lots
> of
> > water.
> >
> > My windows on both sides leak like a sieve, although my opening
> forward
> > windows don't leak at all, yet.
> >
> > When I first got my boat I routinely got water in my bilge
> whenever it
> > rained. Now I rarely get water in my bilge unless we get a
> serious downpour
> > with lots of wind. According to Elton, dirt and grime probably
> helped seal
> > some leaks.
> >
> > I always get water in my lazerette which I believe comes in
> through the
> > opening for the belt for the motor lift.
> >
> > For what it's worth, I haven't got any condensation since the
> first year I
> > owned the boat, although I really didn't get much condensation then.
> >
> > Although we live in the same area, it sounds like you get a lot more
> > condensation than I do.
> >
> > I don't have translucent hatches, which may be the difference.
> >
> > I visit my boat frequently and always empty the bilge if it has
> any water.
> >
> > You mentioned that it's tough to empty the bilge. When I first
> empty my
> > bilge, water continues to seep into it. It takes about ten
> minutes of
> > patience and sponging for all the water to be gone.
> >
> > I only have one bilge area around the centerboard trunk and its
> access
> > panel is not screwed down.
> >
> > Good luck!
> >
> > Lee
> > 1986 Rhodes22 At Ease
> > Kent Island, MD
> >
> >
> >
> >
> >
> >
> >
> > -----Original Message-----
> > From: rhodes22-list-bounces at rhodes22.org [mailto:
> > rhodes22-list-bounces at rhodes22.org] On Behalf Of Chris Cowie
> > Sent: Monday, November 30, 2009 3:46 PM
> > To: The Rhodes 22 Email List
> > Subject: Re: [Rhodes22-list] Condensation
> >
> > I went to the boat on Sunday and found water condensation dripping
> from the
> > inside of the hatches and cabin ceiling, emptied about a gallon
> out of the
> > bilge. It seems like the sun passing through the translucent
> hatch is
> > heating up the cabin interior that then causes the bilge water to
> fill the
> > air and condense as it reaches the cooler cabin ceiling surface.
> I suppose
> > if I were to get all of the bilge water out then there would not
> be any
> > moisture left to cause condensation even though the temperature
> differential
> > would still exist. It is tough to completely empty the bilge. I
> have a
> > small access panel just outside the head door, all other floor
> boards are
> > securely screwed down. This one removable floor board provides
> access only
> > to the area around the center board trunk and this area appears to
> be
> > slightly higher than the adjacent bilge areas port and starboard.
> Do most
> > rhodies leave the floor board screws out for easy access to all
> bilge areas?
> > Removal of the rode tray and installation of a nicro vent is
> probably my
> > next step. I had purchased a nicro vent that was supposed to be
> > interchangeable with the cowl vent but it would have required
> complete
> > removal of the thru deck cowl vent hardware. I returned the nicro
> vent
> > because I wanted the cowl vent option but now think it would be
> better to
> > just go with the nicro vent.
> >
> > Christopher P. Cowie
> >
> >
> > 4400 MacArthur Blvd, NW
> > Suite 300
> > Washington, DC 20007
> > 202.342.2711
> > 202.342.2691 fax
> > 202.270.1470 mobile
> >
> > [ccowie at cowieassociates.com]
> > cowieassociates.com
> >
> > -----Original Message-----
> > From: rhodes22-list-bounces at rhodes22.org [mailto:
> > rhodes22-list-bounces at rhodes22.org] On Behalf Of David Bradley
> > Sent: Monday, November 30, 2009 12:18 PM
> > To: The Rhodes 22 Email List
> > Subject: Re: [Rhodes22-list] Condensation
> >
> > For anyone interested in how this turned out...
> >
> > The problem was the anchor rode tray, which was blocking the air
> flow.
> > Duh. Getting that out of the boat before "the rains" come (in
> Seattle
> > that's pretty much November through May) allows the Nicro fan to
> adequately
> > vent the boat. Only minor condendsation since removing the tray and
> > getting
> > the rest of the junk out of the vee berth.
> >
> > Hope you all had a nice Thanksgiving, survived Black Friday (damn
> > marketers), and are geared up to do lots of holiday shopping and
> boost the
> > economy.
> >
> > Dave
> >
> > On Mon, Nov 16, 2009 at 7:42 AM, David Bradley <dwbrad at gmail.com>
> wrote:
> >
> > > Has anyone experienced condensation forming inside the cabin to
> the
> > extent
> > > that it produced a few gallons of water in the bilge?
> > >
> > > I have been hoping to get some more sailing in before stripping
> the boat,
> > > but we've had about a month of rain and some windy storms. Have
> been
> > > keeping an eye on the boat throughout but didn't go inside until
> this
> > > weekend. Found the ceiling beneath the pop top and bow covered
> with
> > > condensation and about 4 gallons of water in the bilge (after
> being bone
> > dry
> > > for a couple of years). It may be that the wind blew water in
> around the
> > > pop top but I didn't see signs of that much water on the
> companionway
> > step.
> > >
> > >
> > > Just mopping the condensation off the ceiling produced about a
> gallon of
> > > water, so I guess a month of that could produce a few more
> gallons. But
> > I
> > > didn't see signs of it having saturated the cushions or PFDs
> stored on
> > the
> > > vee berth or the carpet below the pop top.
> > >
> > > I had the anchor line tray installed and and a bunch of stuff
> stored on
> > the
> > > vee berth, so the circulation was poor. Got all that out now and
> > hopefully
> > > the Nicro fan can keep it vented for the rest of the winter - it
> has
> > worked
> > > fine in past years.
> > >
> > > Any similar experiences or speculation to help solve the mystery
> will be
> > > appreciated!
> > >
> > > Thanks,
> > >
> > > Dave
> > >
> > >
> >
> >
> >
> > --
> > David Bradley
> > +1.206.234.3977
> > dwbrad at gmail.com
> > __________________________________________________
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> >
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> 11/30/09
> > 02:31:00
> >
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> > __________________________________________________
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>
>
> --
> David Bradley
> +1.206.234.3977
> dwbrad at gmail.com
> __________________________________________________
> To subscribe/unsubscribe go to http://www.rhodes22.org/mailman/listinfo/rhodes22-list
>
> For the list Charter and help with using the mailing list and
> archives go to http://www.rhodes22.org/list
> __________________________________________________
>
> No virus found in this incoming message.
> Checked by AVG - www.avg.com
> Version: 9.0.709 / Virus Database: 270.14.87/2536 - Release Date:
> 11/30/09 02:31:00
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