Catalina - Capri - 25s International Assocaition Logo(2006)  
Assn Members Area · Join
h.jpg Home.
a.jpg Association Forum
s.jpg Ships Store
c.jpg Cruising
r.jpg Racing
t.jpg Technical Tips
g.jpg Photo Gallery - New
o.jpg Boat Search - Updated
m.jpg Manuals & Brochures
3rdrpt.jpg Swap Meet
l.jpg Links
f.jpg Officer Flag Line & Staff
b.jpg Bylaws & Constitution
 
1.jpg Members Area
1.jpg Join the Association
 
Notice:
The advice given on this site is based upon individual or quoted experience, yours may differ.
The Officers, Staff and members of this site only provide information based upon the concept that anyone utilizing this information does so at their own risk and holds harmless all contributors to this site.
 
Association Forum
Association Forum
Home | Profile | Register | Active Topics | Forum Users | Search | FAQ
Username:
 Password:
Save Password
Forgot your Password?

 All Forums
 Catalina/Capri 25/250 Sailor's Forums
 Catalina 250 Specific Forum
 Ventilation aft		  New Topic  Topic Locked
 Printer Friendly
Author Previous Topic Topic Next Topic  

Al
Captain

Member Avatar

USA
269 Posts
Initially Posted - 03/21/2005 :  00:15:02  Show Profile
Having installed the powered vent in the forward hatch, I needed to add some passive
vents aft. I wanted to keep the coaming clear so I chose the coaming pockets for the
intakes. I drilled through the forward side of the pocket, expecting an inch of space
before I came out through the inner liner. I was only off about 8"...!



Since the two holes were also misaligned a few inches, I used some flexible 4 1/2"
ducting to connect the two sides.



(I only used about half of what's shown in the picture). While I was at it, I also
added some window screen...



After more than a little massaging, I attached the topside grill, then went below
and stuffed a few inches of hose into the liner and screwed down the deck plate...



Then the same thing on the port side...



...which requires being a little more of a contortionist...!

But all's well that ends well, and I'm happy with the way the whole system worked out...
Al Maniccia
SeaWolf C250WK #698
Marina Del Rey, CA
Edited by - Al on 03/21/2005 11:29:48

Arlyn Stewart
Master Marine Consultant

Members Avatar

USA
2980 Posts
Response Posted - 03/21/2005 :  07:51:05  Show Profile  Visit Arlyn Stewart's Homepage
Al, very well done ventilation design, installation and documentation.
Edited by - Arlyn Stewart on 03/21/2005 07:52:10
Go to Top of Page

Northlander
1st Mate

Members Avatar

35 Posts
Response Posted - 03/21/2005 :  13:41:30  Show Profile
Al,

I agree awith Arlyn. Great idea!

Chris
Edited by - on
Go to Top of Page

Tom Potter
Master Marine Consultant

Members Avatar

USA
1913 Posts
Response Posted - 03/21/2005 :  14:32:53  Show Profile
Thats sharp... Like the screen idea.
Edited by - on
Go to Top of Page

welshoff
Captain

Members Avatar

USA
253 Posts
Response Posted - 03/21/2005 :  17:50:46  Show Profile
Does the vent hose run level or does it go up/down as it passes through. It appears by the photo it runs down as it passes through.

I like the idea and it looks well done. Up here in the NW I have concerns on potetial rain water entering the boat via the grill in the coming.
Edited by - on
Go to Top of Page

Al
Captain

Members Avatar

USA
269 Posts
Response Posted - 03/21/2005 :  19:54:16  Show Profile
Yes, the inside deck ring is about 2" lower than the topside grill. Although the drain holes in the pocket would keep the water level in the pocket below the level of the bottom of the grill, it is possible for rain to enter and flow down the hose.

If it were me and I was expecting rain, I'd screw the deck plate into the inside deck ring before I left the boat. The double-wall hose with sealed connections at both ends is very nearly waterproof, I would guess. So you would never get more than 2" of water in the blocked off hose, before it became self-draining. If the hose did leak, it would leak into the bilge, and not the aft berth.

I'd guess the chances are slim that you'd get much water through there, but then again, it may not be appropriate for rainy conditions.

I originally was going to put a "hump" in the hose (a caterpillar shape) to avoid that possibility, but the 4" hose is a little bulky for that in the 9" space you have to work with. Maybe you could do it with 3" hose.
Edited by - on
Go to Top of Page

welshoff
Captain

Members Avatar

USA
253 Posts
Response Posted - 03/22/2005 :  09:27:39  Show Profile
Thanks Al. It sounds like you put a lot of thought into your installation and it came out very clean and functional. Again, well done.
Edited by - on
Go to Top of Page

s3tbuell
1st Mate

Members Avatar

47 Posts
Response Posted - 03/23/2005 :  15:39:29  Show Profile
That is a great idea...and the pics are wonderful...
My only concern would be for any type of offshore or heavy weather sailing, you now have a way for water to flood the boat.
I grew up sailing in the San Francisco area....maybe I am paraniod
Edited by - on
Go to Top of Page
  Previous Topic Topic Next Topic  
 New Topic  Topic Locked
 Printer Friendly
Jump To:
Association Forum © since 1999 Catalina Capri 25s International Association Go To Top Of Page
Powered By: Snitz Forums 2000 Version 3.4.06
Notice: The advice given on this site is based upon individual or quoted experience, yours may differ.
The Officers, Staff and members of this site only provide information based upon the concept that anyone utilizing this information does so at their own risk and holds harmless all contributors to this site.