[Rhodes22-list] Condensation

Sat Dec 5 11:58:26 EST 2009

Update to my condensation issue.  Went to the boat yesterday and found a bit
of condensation on the cabin ceiling but only about a quart of water in the
bilge, better than the gallon or so I had last time.  I have taken
everything movable off the  boat including the anchor rode tray and
installed the Nicro day/night plus 3" solar vent.  I was hoping that the 3"
vent would be able to snap into the 3" cowl vent thru deck fittings but this
installation required me to completely remove the cowl vent and replace with
new thru deck plates that came with the nicro vent.  Removal of the cowl
vent and installation of the nicro vent was easier and smoother than I
expected.  Yesterday was cloudy and today looks like several inches of snow. 
I will have to wait for a sunny day to charge the solar battery and see if
the vent reduces my condensation issue.  Will provide an update after the
fan starts running.

The sketch enclosed is a view from my slip, bet it looks a bit different
today with the first snow of the season.

http://old.nabble.com/file/p26657286/IMG_1201rr.jpg 

Chris Cowie
2009 R22 Opus
HHN

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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-- 
David Bradley
+1.206.234.3977
dwbrad at gmail.com
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