using vacume pump for deck leaks - SailNet Community
 
LinkBack Thread Tools
post #1 of 6 Old 07-13-2012 Thread Starter
Junior Member
 
brissydave's Avatar
 
Join Date: Jul 2012
Posts: 4
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 0
 
using vacume pump for deck leaks

hi men,

first time poster...long time lurker.

i have some issues with wet deck core....yep...i must be the one millionth person . ......apologies!!!

we have a 23 foot "hood" masthead fin keel yacht...... an old fibreglass girl that deserves to live a nice shiny new life.

I have removed the galley, head, comp posts, lockers (pretty much everything) out of the boat and we are renovating. (make longer bunks and open it up a bit and modernize.

blokes.....my idea is this: i have some wet core issues and am the kind of person that's not afraid of a bit of work or spending cash, so id rather re-core overhead than fanny around with drilling holes and drying/filling (not to say that wont work...prob works nicely and i was tempted)

so....is it possible to hook up a compressor (at a low pressure) to the deck core....and pump the core up....(a teeny bit).....and then use water (and maybe some detergent) to see where the bubbles comes out around your fittings etc?

anyone done this?

dave
brissydave is offline  
Quote Quick Reply Share with Facebook
Sponsored Links
Advertisement
 
post #2 of 6 Old 07-13-2012
Battered and Bruised
 
Silvio's Avatar
 
Join Date: Nov 2010
Posts: 490
Thanks: 0
Thanked 7 Times in 4 Posts
Rep Power: 5
 
Re: using vacume pump for deck leaks

I saw a fellow in Pensacola Florida do a similar process in reverse. He taped plastic over all of his obvious openings from the inside of the boat then taped his shop vacuum hose to the upper most hatch board closing off all the opening he could. He was basically pressurizing the boat from the inside and soaping the decks to find small leaks. Seemed to work pretty well. He probably only raised the pressure inside by a psi or two but was enough to cause bubbles above when there was a leak.

Happy hunting!

SV S.S.R.I
It's my happy pill
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
Silvio is offline  
Quote Quick Reply Share with Facebook
post #3 of 6 Old 07-13-2012
Senior Cruiser
 
sea_hunter's Avatar
 
Join Date: Jul 2000
Posts: 512
Thanks: 0
Thanked 1 Time in 1 Post
Rep Power: 16
 
Think the opposite, tape the areas like hatches etc (area that normally leak) and blow air into the hull with a large fan. Use a garden sprayer filled with children's bubble soap and spray suspect areas. Theoretically you're idea should work, but since you've got the furniture and other interior elements removed, it's time to get on with the task. Remove the fittings to be rebedded and get out the skill saw. Edit, LOL timing is everything.
sea_hunter is offline  
Quote Quick Reply Share with Facebook
post #4 of 6 Old 07-13-2012
Senior Member
 
JimsCAL's Avatar
 
Join Date: May 2007
Location: Glen Cove, NY
Posts: 2,807
Thanks: 2
Thanked 70 Times in 65 Posts
Rep Power: 9
 
Re: using vacume pump for deck leaks

i would be concerned that pressurizing the core could cause more damage - like breaking good bonds between the fiberglass skin and core. The traditional methods of a moisture meter and tapping with a small hammer will locate the problem areas. Rebedding fittings in that area properly will then stop further water intrusion.

Silvio's idea of pressurizing the cabin may find leaks into the cabin, but not into the core.
JimsCAL is offline  
Quote Quick Reply Share with Facebook
post #5 of 6 Old 07-13-2012
Load Bearing Member
 
CarbonSink62's Avatar
 
Join Date: Sep 2011
Location: Derry, NH
Posts: 597
Thanks: 7
Thanked 12 Times in 11 Posts
Rep Power: 4
 
Dock
Re: using vacume pump for deck leaks

How about this:
1. Pressurize the cabin and use soapy water to find all the leaking fittings.
2. Reverse the flow and pull a vacuum in the cabin.
3. Pour epoxy into all the fittings that leak!

I'M KIDDING!!

OMG what a mess that would be! Little stalagtites of epoxy hanging from the overhead.

Zen Again

1978 Bristol 29.9 #122

Testing a mother's love since 1962
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
CarbonSink62 is offline  
Quote Quick Reply Share with Facebook
post #6 of 6 Old 07-14-2012 Thread Starter
Junior Member
 
brissydave's Avatar
 
Join Date: Jul 2012
Posts: 4
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 0
 
Re: using vacume pump for deck leaks

@ carbonsink62

god i wish that would work!!!

anyway....now ive found that the stringer above my compression posts is rotted (the ply inside the polyester tabbing)

Is every single piece of wood on this boat rotten?????.....(yes it appears that way)
brissydave is offline  
Quote Quick Reply 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:
OR

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
Show Printable Version Show Printable Version
Email this Page Email this Page



Similar Threads
Thread Thread Starter Forum Replies Last Post
C&C34 Deck leaks mneeboston C & C 4 11-30-2011 11:14 PM
West Wight Potter Galley Pump Leaks ArcherBowman Gear & Maintenance 3 04-30-2010 12:40 PM
Deck to hull leaks asivesind Gear & Maintenance 13 02-08-2009 02:31 PM
Deck/Hull Leaks jringles Morgan 2 10-25-2007 04:00 PM
Teak Deck Caulking Leaks dsbentley Gear & Maintenance 3 03-13-2007 07:49 PM

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