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Winterising 495

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superliga View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote superliga Quote  Post ReplyReply Direct Link To This Post Posted: 08 April 2012 at 20:43
You also need to empty the boiler, it will NOT empty by just running the tap.
PEARL - S/Y SUPERLIGA - HANSE 470 e - Hull #168 - hanse470.com
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CharlesP View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote CharlesP Quote  Post ReplyReply Direct Link To This Post Posted: 08 April 2012 at 21:33
Originally posted by CharlesP CharlesP wrote:

It's good to read your science Panos. It confirms my unscientific thoughts.

I am using passive chemical crystals for the first time this year so I will be able to report on them next year. Didn't use anything last year and found condensation most visits.

Charles


Just an update.
My passive chemical crystal worked very well during our winter and I will do the same next winter.

Charles
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320 Nr 536 2010

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samuel View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote samuel Quote  Post ReplyReply Direct Link To This Post Posted: 09 April 2012 at 08:02
Charles P
Being at Bradwell I am not that far from you  & yet I have never had a real condensation problem.
I do, however, leave the hatches open in vent position.
I always bring all the contents home for cleaning & sorting. I do not think that would be so easy in a larger boat.
It is amazing how stuff builds up in a cruising boat
Everything is handy even if you never need it !!!    so it is worth getting it all out & sorting
 
Another thing I do to prevent mould is get a plastic tub of paper towels & add some detergent & a little water.I then shake it & leave for a while to soak in.
 
When I do my end of season clean up I wipe all round the boat especially the corners where mould might grow & effectively leave a film of detergent behind.
I haven't a clue if this actually works, but I always clean out at the end of the season so it is no extra labour
But I can say that I have never had mould in any part of the boat.
I have spoken to some owners who have been plagued by it
 
 
Daydream Believer- Hanse 311- No GBR9917T- Bradwell Essex
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superliga View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote superliga Quote  Post ReplyReply Direct Link To This Post Posted: 09 April 2012 at 09:34
I also use chemical crystal and keep the boat on land under a cover (NOA system) all extras is kept home in storage so a minimum of material in the boat to collect moist.  It works fine.

I have decided to keep the boat in water next winter - i am planning to use chemical crystal for moist and get a fibertex cover to protect the boat
PEARL - S/Y SUPERLIGA - HANSE 470 e - Hull #168 - hanse470.com
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CharlesP View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote CharlesP Quote  Post ReplyReply Direct Link To This Post Posted: 09 April 2012 at 10:20
Samuel - ventilation is the key, I am sure. I have always been nervous about leaving the hatches in vent position. Does rain stay out, or do you have an external "tent" or cover?
We certainly do the thorough cleaning bit and empty out, except for the cushions which we put on edge for air circulation. We also visit regularly and put a fan heater on from time to time.

Charles
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samuel View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote samuel Quote  Post ReplyReply Direct Link To This Post Posted: 09 April 2012 at 11:35
Charles P
I am not sure that putting a fan heater on & then turning off & leaving a warm boat to cool is a good thing.
I suspect that could attract condensation. As panos correctly pointed out warm air holds more moisture than cold & as it cools it drops it as dew at the coldest spots first. (years since I went to school but I seem to recall that there is a cold point  where the process is reversed around about 1 degree C, I think!!!!)
 
Re ventillation - I some times get a minimal amount of water in if the wind blows from the wrong direction but I just mop up regularly, as living 4 miles from  the marina I visit most weekends
 
I do not cover the boat as years ago I had a wooden boat that I painted fresh from the factory at the end of the season. I covered it for the winter & when I uncovered at the start of the season I found that the cover had worn large patches of paint & the hull had to be repainted. I, therefore, suspect that a cover flapping in the wind will damage the gel coat, or possibly put minute scratches in it.
Daydream Believer- Hanse 311- No GBR9917T- Bradwell Essex
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CharlesP View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote CharlesP Quote  Post ReplyReply Direct Link To This Post Posted: 09 April 2012 at 11:58
My reason for the fan heater is to increase the temperature to dry surfaces and cushions if necessary and then remove this humidity with the dehumidifier which is then turned off and the cool interior left for the crystals when I then leave the boat. Sounds complicated, but did seem to work a treat this winter.

(of course, the fan heater also keeps me warm and probably leads to sweating which increases humidity!!?)

Charles
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Sailingjack Quote  Post ReplyReply Direct Link To This Post Posted: 10 April 2012 at 07:48

I have a slightly different approach in fighting against mold during winterization. This is a method I've successfully used already for decades ... well since late 1980's.

I open all cabinet doors and all lids, so that air can circulate. Then I pour about a kilo of calcium cloride in a regular plastic bucket and put these buckets everywhere in the boat. This winter I have seven buckets inside my 400.

Calcium cloride is used for melting ice on roads and sidewalks, it is very hygroscopic. You can buy a 25kg bag of CaCl in a hardware store with a few euros.

This salt bucket is actually just a heavy-duty version of these dehum-balls you can buy in boat shops.

This is important: I then close all ventilation on deck, I even tape over deck vents and close toilet sink valves. I put plastic wrap over the companionway hatch. The idea is not trying to dehumidify the atmosphere, just inside the boat.
 
In the spring I typically have around two liters of water in every bucket and the bilge is bone dry, even when it was impossible to totally drain it in the fall.

No mold, the boat smells fresh ... or smells plastic boat and buckets to be honest.Smile

Hanse 400#803 s/y Saara
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