Bladder as holding tank - 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 02-28-2009
dbruce85's Avatar
Ticon 30
 
Join Date: Aug 2007
Location: Fort Erie
Posts: 132
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 8
dbruce85 is on a distinguished road
Bladder as holding tank

On my P26, there is the original poly water tank, which is larger than I ever need. Under that is a bladder which is the "holding tank". I could fit two smaller poly tanks in the same area under the V Berth.
It is a project which I planned on doing someday, just wondering if keeping the bladder for a while longer is a bad idea.
It seems to be in good shape, but I have no ides how old it is.
Any sites I have seen on bladders, seem to recommend them as water tanks, not holding tanks.
Thanks,
David
Reply With Quote Share with Facebook
  #2  
Old 02-28-2009
chef2sail's Avatar
Senior Member
 
Join Date: Nov 2007
Location: Maryland
Posts: 6,974
Thanks: 29
Thanked 55 Times in 51 Posts
Rep Power: 7
chef2sail will become famous soon enough
Send a message via AIM to chef2sail
We replaced our 6 gallon Nantua bladder holding tank which the PO installed so he could have a larger fresh water capacity with a solid 24 gallon tank to go along with the 80 gallon fresh water tank under the starbord settee. The baldder holding tank was a source of smells on our boat and was not very good and being ablie to pump out completely despite having a vent. I would not use a flexible holding tank and would look for alternative tanks such as one under the head or one custom made.

We went back to the original design and now have a rigid 24 gallon holding tank, new 101 trident hoses and all the odors have vanished. To replace the water volume loss. We installed a 36 gallon plastima flexible tank where the old bladder tank was.

Our fresh water deck is now got a "T" valve in it allowing us to fill the flexible tank first. The flexible tank is connected to the 80 gallon starboard tank and fills it when we want to carry 116 gallons of water by gravity, which is rarely as most of our sailing is weekends and we really do not need the extra weight. If we only want to fill the starboard and leave the flexible empty we simply close the "T" on the deck fill hose.
__________________

To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
___________________________
S/V Haleakala (Hawaiian for" House of the Sun")
C&C 35 MKIII Hull # 76
Parkville, Maryland
(photos by Joe McCary)
Charter member of the Chesapeake Lion posse

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


“Sailing is just the bottom line, like adding up the score in bridge. My real interest is in the tremendous game of life.”- Dennis Conner
Reply With Quote Share with Facebook
  #3  
Old 03-01-2009
JimsCAL's Avatar
Senior Member
 
Join Date: May 2007
Location: Glen Cove, NY
Posts: 2,447
Thanks: 2
Thanked 37 Times in 36 Posts
Rep Power: 8
JimsCAL is on a distinguished road
I replace the original bladder holding tank on my Cal 9.2 with a rigid plastic tank after numerous problems - the main one being clogging of the vent causing the tank to blow up like a balloon. I would change it out ASAP.
Reply With Quote Share with Facebook
  #4  
Old 03-02-2009
sailingdog's Avatar
Telstar 28
 
Join Date: Mar 2006
Location: New England
Posts: 43,291
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
Not a big fan of using bladders for holding tanks. Most aren't designed to handle waste, and they're difficult to vent, which leads to the growth of anaerobic bacteria—which are the cause of nasty holding tank odors. Also, the material of most flexible bladders will eventually permeate with sewage, leaving them very nasty smelling.
__________________
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 Share with Facebook
  #5  
Old 03-02-2009
dbruce85's Avatar
Ticon 30
 
Join Date: Aug 2007
Location: Fort Erie
Posts: 132
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 8
dbruce85 is on a distinguished road
Thanks for the advise.
Kind of confirmed what I was thinking, I best move that job up on the list.
David
Reply With Quote Share with Facebook
  #6  
Old 04-27-2009
Junior Member
 
Join Date: Apr 2009
Location: Lake Champlain
Posts: 2
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 0
SnowBunny is on a distinguished road
Pearson 26 holding tank question

Hi Bruce, I had the same problem -- flexible holding tank under the settee -- and am thinking of switching to a solid tank under the V berth. Can you let me know what you ended up doing, what kind of tank (size/make?) you got and if you are happy with it?

Thanks,

lisa
Reply With Quote Share with Facebook
  #7  
Old 05-11-2009
Junior Member
 
Join Date: Dec 2004
Posts: 3
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 0
arafura is on a distinguished road
I've had what I feel is tremendous success with a flexible holding tank. It has been installed since 1986 and it's only been the last year when I started smelling hints of it's possible failure but I think it is more likely the hoses than the tank itself. When I am so inclined I can visually see my holding tank and on occaision curiousity got the best of me and I wanted to see if it indeed laid flat after a pump out....no problem there, completely flat...meaning empty.

I am going to replace all my hoses first and then if I still have the smell, if so I will replace the tank but I will probably do so with another flexible holding tank. I worked in the marine hardware industry back in the 80's and there DEFINITELY was a difference in the construction of a bladder tank for water and one for waste.... We sailed 15,000 miles in one year and never once had an issue with failure or smell so I may stand alone, but I'm a big fan of the bladder waste tank because of it's ability to fit into tight spaces. Our holds 75 gallons and could be a large mess if failure occurred.
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
Holding tank location stoutwench Gear & Maintenance 17 04-11-2007 02:40 PM
Custom Holding Tank Mithril Gear & Maintenance 6 03-15-2007 03:48 PM
Holding Tank Questions John_colpitts Gear & Maintenance 14 08-31-2006 06:42 PM
holding or fuel tank Jeanneau Beneteau Myblueheaven Cruising & Liveaboard Forum 0 02-28-2005 09:34 AM
Holding Tanks Tom Wood Gear and Maintenance Articles 0 06-10-1999 08:00 PM


All times are GMT -4. The time now is 11:28 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.