Thru hulls for novices - 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 > General Interest Forums > Gear & Maintenance
 Not a Member? 
  #1  
Old 06-25-2012
AH1 AH1 is offline
Junior Member
 
Join Date: Jun 2012
Location: Vancouver
Posts: 2
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 0
AH1 is on a distinguished road
Thru hulls for novices

I inherited a 24' sailboat and we are in the process of refitting. Thanks to the forum we have now completed the re-wire and have moved onto plumbing.

I have some concerns about the condition of the thru hull fittings which visually look quite degraded. I am unsure if they are brass or bronze and how long they have been in the boat. The last thing I want to deal with is a failed fitting. After researching on the forums it appears that ball valves are much preferred over our older gate valves. Regardless, our valves are no longer operational because the wheel is about to fall off.

Is there any way to inspect and assess the integrity of a thru hull fitting and valve with the boat in the water or on the tide grid? Are we going to get a warning that the fitting is failing with leaking before catastrophic failure? If the thru hull fitting is intact would people recommend leaving the fitting in place and thread on a new valve? Is replacing a thru hull fitting something a novice could do on a tide grid or would be need to haul the boat ?

Our stern thru hull looks like this:
Attached Thumbnails
Thru hulls for novices-img_0106.jpg  
Reply With Quote Share with Facebook
  #2  
Old 06-25-2012
Senior Member
 
Join Date: Oct 2011
Location: Victoria b.c.
Posts: 1,301
Thanks: 1
Thanked 9 Times in 9 Posts
Rep Power: 3
Capt Len is on a distinguished road
Re: Thru hulls for novices

Without more info about age and electrolysis hard to say for sure. Pretty easy to change out thru hull and valve if you are on grid .Takes minutes when things go right.Probably thru hull portion is good.scrape with knife or chisel and look for good seal to hull. Good backing plates are in place? Turf the gate valves and get bronze ball, nylon seals. Quality. Should have softwood tapered plugs on a string next to each valve just in case of catastrophic failure.
Reply With Quote Share with Facebook
  #3  
Old 06-25-2012
mitiempo's Avatar
Senior Member
 
Join Date: Sep 2008
Location: Victoria B.C. Canada
Posts: 6,750
Thanks: 0
Thanked 49 Times in 40 Posts
Rep Power: 6
mitiempo will become famous soon enough
Re: Thru hulls for novices

Here are a few links to through hull types and what to avoid.

Seacock & Thru-Hull Primer/Pre Information Photo Gallery by Compass Marine at pbase.com

Replacing Thru-Hulls and Seacocks Photo Gallery by Compass Marine at pbase.com

Seacock Backing Plates / Alternate Method / No Through Bolts Photo Gallery by Compass Marine at pbase.com
__________________
Brian
Living aboard in Victoria Harbour
Reply With Quote Share with Facebook
  #4  
Old 06-25-2012
eherlihy's Avatar
Will work to sail. :-)
 
Join Date: Jan 2007
Location: Boston Area
Posts: 3,158
Thanks: 71
Thanked 41 Times in 40 Posts
Rep Power: 8
eherlihy will become famous soon enough
Re: Thru hulls for novices



That's one scary looking through hull!

The handle on the gate valve looks ready to fall off. I kind of doubt that the ribbed hose is reinforced. Also, a single automotive-type hose clamp on what appears to be a below the waterline fitting is not good. Is there room, (or need) for a backing plate, on a through hull that seems to go directly through the bilge and keel?

What kind of boat?

If it were my boat, I would think about moving the through hull to another location where I could install a proper backing plate, and filling the hole in the bilge. The links that mitempo posed outline the process.
__________________

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

USCG Licensed OUPV Captain, ASA 101/103/104/105 Certified - Also certified in Recreational Marine Electrical Systems
Reply With Quote Share with Facebook
  #5  
Old 06-25-2012
JimsCAL's Avatar
Senior Member
 
Join Date: May 2007
Location: Glen Cove, NY
Posts: 2,160
Thanks: 0
Thanked 13 Times in 12 Posts
Rep Power: 7
JimsCAL is on a distinguished road
Re: Thru hulls for novices

Change it! Quick!!
Reply With Quote Share with Facebook
  #6  
Old 06-25-2012
Tim R.'s Avatar
Senior Member
 
Join Date: Mar 2003
Location: Portland, Maine
Posts: 1,513
Thanks: 1
Thanked 26 Times in 25 Posts
Rep Power: 12
Tim R. is on a distinguished road
Re: Thru hulls for novices

That photo should be in a marine book with the caption "what not to do" or "how many things do you see wrong with this photo?"

I would not touch it unless hauled. Not even to replace the hose.
__________________
Tim R.
Living aboard in Portland, Maine
1997 Caliber 40LRC

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 06-25-2012
AH1 AH1 is offline
Junior Member
 
Join Date: Jun 2012
Location: Vancouver
Posts: 2
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 0
AH1 is on a distinguished road
Re: Thru hulls for novices

Thanks all!
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
Are Moisture Meters for Novices? GeorgeDog Boat Review and Purchase Forum 19 04-14-2011 01:53 PM
16' hulls jackie19 Gear & Maintenance 0 06-24-2010 01:26 PM
Circumnavigation advice for complete novices fando General Discussion (sailing related) 39 10-19-2009 05:56 PM
An upcoming adventure: Sailing club offers novices free rides, instruction (The Sacramento Bee) NewsReader News Feeds 0 04-29-2006 07:15 AM
An upcoming adventure: Sailing club offers novices free rides, instruction (The Sacramento Bee) NewsReader News Feeds 0 04-27-2006 05:15 AM


All times are GMT -4. The time now is 06:59 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