Head Smell Solution - Page 2 - 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? 
  #11  
Old 08-21-2009
Bene505's Avatar
Glad I found Sailnet
 
Join Date: Jul 2008
Posts: 3,718
Thanks: 6
Thanked 42 Times in 41 Posts
Rep Power: 8
Bene505 will become famous soon enough Bene505 will become famous soon enough
Quote:
Originally Posted by imiloa View Post
If you have "stuff" appearing in the bowl even after the toilet has been flushed it may be that you need new seals for the head. Rebuild kits are available. Maybe someone who's taken on that dirty job can chime in with comments about how easy or hard it is to do.
I have 4 heads like that. I'm thinking I'll get the complete pump assembly and not have to break down the pump assembly myself. Of couse, it costs more, but, rebuilding 4 of those is not something I'm looking forward to.

On the other side of the argument, It's probably just the big flappy rubber part at the bottom that's gotten old.

Anyone have insights into rebuilding Jabsco pump assemblies??? While we have all the hatches open it's not so bad, but come fall we'll need some good advice here.

Regards
__________________
.
.
Great minds discuss ideas;
Average minds discuss events;
Small minds discuss people.
.
The best minds discuss sailing. I don't know why. It's a mystery!
.

Last edited by Bene505; 08-21-2009 at 04:01 PM.
Reply With Quote Quick reply to this message Share with Facebook
  #12  
Old 08-21-2009
CalebD's Avatar
Tartan 27' owner
 
Join Date: Jan 2008
Location: NYC
Posts: 4,616
Thanks: 4
Thanked 92 Times in 85 Posts
Rep Power: 7
CalebD will become famous soon enough
David,
I am sorry to have poo-pooed your idea. It seems as though Bene505 might be the best person to try your idea out with. A simple prototype could be made from a flat sheet of thin rubber or even FRP. It is an interesting idea that would appeal to boat owners who have chronic problems with waste water back flow into the head. Of course, those using porta potties would have no use for such an invention.

Bene,
IIRC your boat's 4 heads each are connected to bladder type holding tanks. IIRC these bladder tanks are mounted higher then the actual heads themselves. I am reasonably sure that your tanks have at least one air vent in them (some have none, which is a recipe for a pretty chitty mess). This plumbing arrangement creates the perfect set up for back flow from the tank to occur, IMHO.
That 'flappy rubber part at the bottom' (aka, joker valve) is designed to allow waste to be pushed through in one direction when pressure from your pump pushes it. It is NOT designed to stop all liquids from percolating back into the head mechanism if there is any back pressure (eg., gravity, heeling of the boat etc).
Perhaps the run of waste pipe to the tanks does not go up high enough to prevent waste from running back down to the joker valve where it will seep back into the head. If the tanks are mounted just below your deck level there will not be enough room to create a high point in the run to prevent back flow.
I just re-read a section of Peggie Hall's book where she discusses bladder holding tanks. She does not have kind words to say about this arrangement especially when it comes to controlling odors. It sounds to me as though you might benefit from David's idea since it may help treat the symptom but not the cause of your head problems.
I have installed a Groco head re-build kit and it is not difficult to do and not as nasty a job as it might seem IF the tank has been pumped out first. I have been meaning to get the rebuild kit for the head on my own boat as well. Some of the re-build kits are kind of pricey for the small amount of parts you actually get. A boat owner I know (Bene 1st 51') told me that he just gets a new manual Jabsco head when problems start arising with the 'older' units instead of trying to fix them. If the service kit costs $50 and a new head costs around $200 then if you install a brand new complete head you may have spent $150 more but everything is brand spanking new for nearly the same amount of time and effort.
A new head will likely pump with more pressure but will not necessarily stop the back flow from your tanks if the plumbing was not done properly in the first place though. Beneteau chose to use the bladder tanks on your boat for the obvious reason that they fit well tucked away behind the liners. You might want to speak to Beneteau to find out how they have handled this problem with other boats like yours.
My best.
__________________
"The cure for anything is salt water~ sweat, tears, or the sea." ~Isak Denesen

Everybody has one:

To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
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
Head Sail Solution on Moorings Cat Mallardtool Seamanship & Navigation 2 06-04-2009 10:13 AM
Head - electric conversion or new electric head snw Gear & Maintenance 5 04-29-2007 08:07 AM
Head Service Kit (Jabsco) offline2004 Gear & Maintenance 6 04-16-2007 12:39 PM
head water intake smell JHodor Gear & Maintenance 2 10-04-2006 11:41 AM
That Diesel Smell Mark Matthews Gear and Maintenance Articles 0 08-27-2001 09:00 PM


All times are GMT -4. The time now is 01:38 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.