thru-hulls without seacocks? - SailNet Community

   Search Sailnet:

 forums  store  


Quick Menu
Forums           
Articles          
Galleries        
Boat Reviews  
Classifieds     
Search SailNet 
Boat Search (new)

Shop the
SailNet Store
Anchor Locker
Boatbuilding & Repair
Charts
Clothing
Electrical
Electronics
Engine
Hatches and Portlights
Interior And Galley
Maintenance
Marine Electronics
Navigation
Other Items
Plumbing and Pumps
Rigging
Safety
Sailing Hardware
Trailer & Watersports
Clearance Items

Advertise Here






Go Back   SailNet Community > On Board > Gear & Maintenance
 Not a Member? 
  #1  
Old 01-26-2013
robbieland's Avatar
Junior Member
 
Join Date: Sep 2011
Posts: 21
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 0
robbieland is on a distinguished road
thru-hulls without seacocks?

I'm replacing the thru-hull fittings and hoses on recently purchased victoria 18. It seems odd to me there just through hulls and no seacocks or cutoff valves from hull below to deck. Am I missing something in understanding this concept such as scientific dynamics that water will not travel up below water line to deck? I'm planning to dock the boat in a lake for few months, but obviously wanted to make sure I'm doing this correctly. Thanks for any advice
Reply With Quote Share with Facebook
  #2  
Old 01-26-2013
Faster's Avatar
Just another Moderator
 
Join Date: Sep 2005
Location: New Westminster, BC
Posts: 14,604
Thanks: 67
Thanked 179 Times in 175 Posts
Rep Power: 10
Faster has a spectacular aura about Faster has a spectacular aura about Faster has a spectacular aura about
Re: thru-hulls without seacocks?

The water will self level at balance, of course.. The only way it will end up in the cockpit is if the cockpit sole ends up below the water line ( sometimes when heeled, or too many people on board)

The main issue with no seacock is the inability to close things off in the event of a problem. I believe that some Pearsons were built that way too.
__________________
Ron

1984 Fast/Nicholson 345 "FastForward"

".. there is much you could do at sea with common sense.. and very little you could do without it.."
Capt G E Ericson (from "The Cruel Sea" by Nicholas Monsarrat)
Reply With Quote Share with Facebook
  #3  
Old 01-26-2013
Stu Jackson's Avatar
Senior Member
 
Join Date: Jul 2001
Posts: 787
Thanks: 0
Thanked 9 Times in 8 Posts
Rep Power: 14
Stu Jackson is on a distinguished road
Re: thru-hulls without seacocks?

Are those the cockpit drain lines? Some builders did that to avoid "dummies" closing them and flooding the cockpit and sinking the boat. Still, not a good idea, but just make sure you have double hose clamps on the underwater end of the hose.
__________________
Stu Jackson, C34, 1986, M25 engine, Rocna 10 (22#)
Reply With Quote Share with Facebook
  #4  
Old 01-26-2013
robbieland's Avatar
Junior Member
 
Join Date: Sep 2011
Posts: 21
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 0
robbieland is on a distinguished road
thru-hulls without seacocks?

Yes. They were initially without the double clamp and plastic thru hulls, I'm changing out for bronze and doubling the clamps. Thanks for the info/reassurance.
Reply With Quote Share with Facebook
  #5  
Old 01-26-2013
Jiminri's Avatar
Senior Member
 
Join Date: Aug 2012
Posts: 197
Thanks: 5
Thanked 5 Times in 5 Posts
Rep Power: 2
Jiminri is on a distinguished road
Re: thru-hulls without seacocks?

Quote:
Originally Posted by Stu Jackson View Post
Are those the cockpit drain lines? Some builders did that to avoid "dummies" closing them and flooding the cockpit and sinking the boat. Still, not a good idea, but just make sure you have double hose clamps on the underwater end of the hose.
Well, that clears a few things up. When my Nonsuch 30 was surveyed, the surveyor commented that the cockpit drains did not have seacocks on the thru hulls. I did not realize that some (most??) boats do. She said that was ok, but to make sure they are double clamped (they are) and have wooden plugs available in case of an emergency. But maybe I should see about swapping out for seacocks.
Reply With Quote Share with Facebook
  #6  
Old 01-26-2013
tommays's Avatar
Senior Member
 
Join Date: Sep 2008
Posts: 4,234
Thanks: 1
Thanked 24 Times in 24 Posts
Rep Power: 6
tommays will become famous soon enough
Re: thru-hulls without seacocks?

I owned a new Victoria 18 in 1981 and i do not recall anything below the waterline JUST the drains ?

It was left in the water with NO bilge pump and never got a DROP inside


A J24 has two fairly scary above the waterline drains also which would certainly sink the boat IF a hose failed and the sink drain would let in MUCHO water if the hose failed
__________________
1970 Cal 29 Sea Fever

To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.

1981 J24 Tangent 2930
Tommays
Northport NY


If a dirty bottom slows you down what do you think it does to your boat
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
Reply With Quote Share with Facebook
  #7  
Old 01-27-2013
Senior Junior Member
 
Join Date: Jun 2012
Location: Montpelier, Vermont
Posts: 25
Thanks: 0
Thanked 1 Time in 1 Post
Rep Power: 0
Watercolor is on a distinguished road
Re: thru-hulls without seacocks?

Murphy, as in Murphy's Law, loves to hear people say, especially on a boat, "I've never had a problem in the X number of years I've had my boat."

If you have through-hull below the waterline or below the heeled waterline make sure you have an ABYC/UL 1121 seacock.
Reply With Quote Share with Facebook
  #8  
Old 01-27-2013
tommays's Avatar
Senior Member
 
Join Date: Sep 2008
Posts: 4,234
Thanks: 1
Thanked 24 Times in 24 Posts
Rep Power: 6
tommays will become famous soon enough
Re: thru-hulls without seacocks?

Except for on the Victoria 18 and the J24 there NOT what people are assuming its is much more like self bailing powerboat suppers

I also sail on a 1970 C&C 35 MARK I with and equally silly setup and if you DID have valves and closed them the cockpit would fill and FLOOD the cabin the FIRST time it RAINED
__________________
1970 Cal 29 Sea Fever

To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.

1981 J24 Tangent 2930
Tommays
Northport NY


If a dirty bottom slows you down what do you think it does to your boat
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
Reply With Quote Share with Facebook
  #9  
Old 01-27-2013
SloopJonB's Avatar
Senior Moment Member
 
Join Date: Jun 2011
Location: West Vancouver B.C.
Posts: 10,646
Thanks: 56
Thanked 48 Times in 45 Posts
Rep Power: 4
SloopJonB will become famous soon enough
Re: thru-hulls without seacocks?

I've seen metal boats where the cockpit drains were simply tubing welded between the cockpit sole and the hull - very slick since they both eliminated seacocks, hoses, clamps etc. and added some rigidity to the boat.

One could probably do it with glass tubes in a glass boat but I'd want the tubes to be THICK.
__________________

To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
I, myself, personally intend to continue being outspoken and opinionated, intolerant of all fanatics, fools and ignoramuses, deeply suspicious of all those who have "found the answer" and on my bad days, downright rude.
Reply With Quote Share with Facebook
Reply


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools

 
Posting Rules
You may post new threads
You may post replies
You may post attachments
You may edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On


Similar Threads
Thread Thread Starter Forum Replies Last Post
Of thru-hulls and seacocks... utchuckd Gear & Maintenance 3 08-06-2012 04:48 PM
Replacing seacocks and through hulls. davewild Gear & Maintenance 8 03-04-2010 11:48 AM
Basics of Seacocks, Thru-Hulls, Valves Jaywalker Gear & Maintenance 12 12-20-2009 04:58 PM
Thu Hulls vs Seacocks BluewaterBruce Gear & Maintenance 13 08-28-2008 11:40 AM
New thru-hulls/seacocks ereuter Gear & Maintenance 27 05-07-2007 06:31 PM


All times are GMT -4. The time now is 03:01 AM.

Add to My Yahoo!         
Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2014, vBulletin Solutions, Inc.
SEO by vBSEO 3.6.1
(c) Marine.com LLC 2000-2012

The SailNet.com store is owned and operated by a company independent of the SailNet.com forum. You are now leaving the SailNet forum. Click OK to continue or Cancel to return to the SailNet forum.