dumb question on thru hull valves - 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 08-14-2007
all these confusing ropes
 
Join Date: Aug 2006
Posts: 166
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 9
dohenyboy is on a distinguished road
dumb question on thru hull valves

Had a lot of work done on my boat last year. One of the heads has never worked right--too much back pressure when pumping out--and I followed the line going out of the holding tank to the thru hull. I thought I would close the thru hull valve and reopen it to see how free it was. The valve is a nice and newer Red and White brand. Only problem is that the air conditioning guy ran the condenser lines directly to the side of the valve, so that the lines block the lever-- it cannot be closed. Obviously a potentially boat-sinking problem.
As I see it I have three choices: possibly I can rotate the valve --tighten it on the thru hull by 90 degrees, so that the lever falls another place--is this feasible and can I do it without a haul out?
Second, I could have a lever made up with the same rectangular hole that is in the current lever (the hole fits over the valve stem), just offset 90 degrees
third, I could have an extension put on the thru hull, so that the lever is higher and can clear the airconditioning lines. This would definitely have to be done while hauled out.
Any input?
Reply With Quote Quick reply to this message Share with Facebook
  #2  
Old 08-14-2007
Owner, Green Bay Packers
 
Join Date: Sep 2006
Location: SW Michigan
Posts: 10,318
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 12
sailaway21 is just really nice sailaway21 is just really nice sailaway21 is just really nice sailaway21 is just really nice
If offsetting it 180 degrees will help, just unbolt the lever, flip it 180 degrees and re-bolt. If you make up a new one, not too big a job, and mount it 90 degrees off, make sure you label it in some way that someone unfamiliar with it will be able to readily see that, "in the closed position-it's open".
__________________
“Scientists are people who build the Brooklyn Bridge and then buy it.”
Wm. F. Buckley, Jr.
Reply With Quote Quick reply to this message Share with Facebook
  #3  
Old 08-14-2007
sailingdog's Avatar
Telstar 28
 
Join Date: Mar 2006
Location: New England
Posts: 43,290
Thanks: 0
Thanked 11 Times in 11 Posts
Rep Power: 13
sailingdog is just really nice sailingdog is just really nice sailingdog is just really nice sailingdog is just really nice sailingdog is just really nice
Quote:
Originally Posted by dohenyboy View Post
Had a lot of work done on my boat last year. One of the heads has never worked right--too much back pressure when pumping out--and I followed the line going out of the holding tank to the thru hull. I thought I would close the thru hull valve and reopen it to see how free it was. The valve is a nice and newer Red and White brand. Only problem is that the air conditioning guy ran the condenser lines directly to the side of the valve, so that the lines block the lever-- it cannot be closed. Obviously a potentially boat-sinking problem.
Yes this is a major problem... I would shoot the A/C guy who installed those lines...
Quote:
As I see it I have three choices: possibly I can rotate the valve --tighten it on the thru hull by 90 degrees, so that the lever falls another place--is this feasible and can I do it without a haul out?
Not if the through-hull and seacock were installed properly. The seacock shouldn't be able to turn any further.
Quote:
Second, I could have a lever made up with the same rectangular hole that is in the current lever (the hole fits over the valve stem), just offset 90 degrees
Yup, but mark it very clearly as Sailaway21 has indicated, so that no one closes it, thinking it is closed, when it is actually open. Seacocks are designed so that it can be seen if they are open or closed at a glance... and closing a head seacock while at sea, and then using that head while the seacock is closed can be a very bad thing.
Quote:
third, I could have an extension put on the thru hull, so that the lever is higher and can clear the airconditioning lines. This would definitely have to be done while hauled out.
Any input?
Probably not a good idea. The extension would increase the torque applied to the throughhull when the seacock is opened or closed. Generally not a good idea.
__________________
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.
Reply With Quote Quick reply to this message Share with Facebook
  #4  
Old 08-17-2007
Member
 
Join Date: May 2006
Posts: 85
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 9
7tiger7 is on a distinguished road
I would find the guy who ran the AC lines and have him reroute them for you, free of charge. He should of been smart enough not to block the operation of a seacock in the first place.
Reply With Quote Quick reply to this message Share with Facebook
  #5  
Old 09-22-2007
all these confusing ropes
 
Join Date: Aug 2006
Posts: 166
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 9
dohenyboy is on a distinguished road
Here is an update
I was able to bend the lines so that I could close the valve, but there must be some growth in it, because I had to hammer the lever down and even then there is a trickle of water coming out. I left it closed like this and plan to have the boat hauled and a new valve installed--the right way so I can exercise the valve.
I found two things causing the problem with high pressure as the toilet is emptied. I took off each hose beginning with the toilet and the last piece going to the Y valve was a culprit. Its the hardest one to change because it snakes through some bulkheads, and looks like it was not changed when all the other hoses were last time, because it definitely much older looking--anyway, this hose, which is about 6 feet long, was full of dirt. I mean only a little hole in the center about pencil diameter remained free.
Secondly, the Y valve was installed backwards. It supposed to direct the flow either into the holding tank (into a fitting at the top of the tank) or to the through hull. It was installed so in one valve position it flowed into the through hull, and in the other position blocked the inlet hose and instead connected the top of the holding tank to the through hull. So, the toilet could never discharge into the holding tank.
Its one of these valve where the handle shows the flow direction. I cannot believe someone could be so stupid (and it was a "pofessional") to make this mistake. Seems that half the time when work is done on a boat by a "professional" its done incorrectly. Its the most frustrating part of boat ownership to me.
Reply With Quote Quick reply to this message Share with Facebook
  #6  
Old 09-23-2007
sailingdog's Avatar
Telstar 28
 
Join Date: Mar 2006
Location: New England
Posts: 43,290
Thanks: 0
Thanked 11 Times in 11 Posts
Rep Power: 13
sailingdog is just really nice sailingdog is just really nice sailingdog is just really nice sailingdog is just really nice sailingdog is just really nice
Dohenyboy-

Just remember, all being a professional takes is having the IRS know you do it for a living...it doesn't require that you be any good at what you do. I know a lot of amateurs that are far better and more trustworthy and skilled than most of the professionals I've seen. This is true for every field, from photography, electricians, plumbers, network engineers, mechanics, and so on.
__________________
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.
Reply With Quote Quick reply to this message Share with Facebook
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:

Log-in

Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.




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
High Tech vs traditional-Comments? Pangaea General Discussion (sailing related) 38 08-07-2007 02:07 AM
Spring Hull Cleaning Tom Wood Gear and Maintenance Articles 0 04-05-2004 09:00 PM
hull construction cgha33 Boat Review and Purchase Forum 4 05-23-2003 08:11 PM
Hull Speed Demystified Steve Colgate Learning to Sail Articles 0 06-10-2000 09:00 PM
Hull Speed Demystified Steve Colgate Buying a Boat Articles 0 06-10-2000 09:00 PM


All times are GMT -4. The time now is 08:18 PM.

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.