Intake Through hull for Marine Head - SailNet Community
 
LinkBack Thread Tools
post #1 of 5 Old 08-20-2006 Thread Starter
Senior Member
 
Join Date: Aug 2006
Location: Oak Harbor, WA
Posts: 300
Thanks: 12
Thanked 0 Times in 0 Posts
Rep Power: 14
 
Intake Through hull for Marine Head

This Spring we noticed that over the winter water in our marine head had frozen, cracking the back of the fixture. When I went to replace the broken head, I found that, even with the seacock closed, water continued to flow from the intake line, indicating that the seacock was not functioning right. It wasn't closing off fully.

Question: Do I need to replace the seacock or is this just the result of lack of maintenance. Can they just be cleaned or something? The seacock is bronze, I think - I guess it could be brass. I'm kind of learning maintenance as I go...is this kind of thing common?
dave6330 is offline  
Sponsored Links
Advertisement
 
post #2 of 5 Old 08-20-2006
Banned
 
Join Date: Mar 2006
Location: subject to change
Posts: 1,264
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 0
 
Dave - if there was water in the seacock that froze and expanded, yes, the pressure from expansion could have cracked the seacock. Particularly if the water was trapped in a seacock in the 'closed' position - sometimes this happens even down here in the warmer 48, with boats in the water with seacocks closed.

BTW, as part of your damage control kit you should have some soft wooden plugs of the appropriate diameter to fill the hole if a seacock breaks (or blows out), some folks put the plug right next to each seacock.
eryka is offline  
post #3 of 5 Old 08-20-2006
Telstar 28
 
sailingdog's Avatar
 
Join Date: Mar 2006
Location: New England
Posts: 43,289
Thanks: 0
Thanked 20 Times in 15 Posts
Rep Power: 19
         
Generally, the plugs need to be kept DRY. The idea behind the softwood plugs is that they will swell and remain in the hole as a plug as they absorb water. If the plugs are already wet, they will not swell, and will not properly serve their function.




Sailingdog

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

Telstar 28
New England

You know what the first rule of sailing is? ...Love. You can learn all the math in the 'verse, but you take
a boat to the sea you don't love, she'll shake you off just as sure as the turning of the worlds. Love keeps
her going when she oughta fall down, tells you she's hurting 'fore she keens. Makes her a home.

—Cpt. Mal Reynolds, Serenity (edited)

If you're new to the Sailnet Forums... please read this
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
.

Still—DON'T READ THAT POST AGAIN.
sailingdog is offline  
 
post #4 of 5 Old 08-20-2006 Thread Starter
Senior Member
 
Join Date: Aug 2006
Location: Oak Harbor, WA
Posts: 300
Thanks: 12
Thanked 0 Times in 0 Posts
Rep Power: 14
 
We do have the appropriate sized wooden plugs tied with cord next to all of the thru hulls where they do, indeed, stay dry. We may be new at this but the previous owner was a good sailer and maintained the boat well. God bless him!

If the valve were damaged due to freezing, wouldn't there be a seep from the valve into the bilge? We have the kind of valve with the lever off to the side that turns a barrel inside the valve body allowing water to pass. Seems kind of foolproof. I was wondering if these wear out? For now, CIRRUS is on the hard so I'm not worried, but I'm concerned about what I need to do before I put her back in the water.

V/R
dave6330 is offline  
post #5 of 5 Old 08-21-2006
Telstar 28
 
sailingdog's Avatar
 
Join Date: Mar 2006
Location: New England
Posts: 43,289
Thanks: 0
Thanked 20 Times in 15 Posts
Rep Power: 19
         
Not necessarily, it would depend on where and how the valve was damaged. By "turns a barrel" do you mean it turns a ball or a tapered cone? The design of the two valves is quite different.

If you are able to remove the seacock from the thru-hull, I would take it off and inspect it—then replace it if necessary. This should be fairly easy to do since Cirrus is on the hard. It is also better to be safe than sorry, since replacing it while the boat is in the water will be much more difficult.




Sailingdog

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

Telstar 28
New England

You know what the first rule of sailing is? ...Love. You can learn all the math in the 'verse, but you take
a boat to the sea you don't love, she'll shake you off just as sure as the turning of the worlds. Love keeps
her going when she oughta fall down, tells you she's hurting 'fore she keens. Makes her a home.

—Cpt. Mal Reynolds, Serenity (edited)

If you're new to the Sailnet Forums... please read this
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
.

Still—DON'T READ THAT POST AGAIN.
sailingdog is offline  
Reply

Quick Reply
Message:
Options

By choosing to post the reply above you agree to the rules you agreed to when joining Sailnet.
Click Here to view those rules.

Register Now



In order to be able to post messages on the SailNet Community forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.
Please note: After entering 3 characters a list of Usernames already in use will appear and the list will disappear once a valid Username is entered.


User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:
OR

Log-in











Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page



Similar Threads
Thread Thread Starter Forum Replies Last Post
O'Day 31: toilet water intake through-hull gary k O'Day 6 02-11-2014 05:14 PM
Additional raw water intake to supplement saildrive intake. GMC Gear & Maintenance 1 02-18-2012 02:10 PM
Plumbing sink drain to head intake CLucas Gear & Maintenance 12 03-08-2009 12:49 PM
Head Water Intake maddata Gear & Maintenance 1 06-19-2007 07:13 AM
head water intake smell JHodor Gear & Maintenance 2 10-04-2006 10:41 AM

Posting Rules  
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On
Trackbacks are On
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome