How to find the proper holding tank for my boat? - SailNet Community
Reply
 
LinkBack Thread Tools
post #1 of 17 Old 01-28-2010 Thread Starter
Senior Member
 
SSBN506's Avatar
 
Join Date: Apr 2008
Location: New Brunswick Canada
Posts: 173
Thanks: 2
Thanked 3 Times in 3 Posts
Rep Power: 8
 
Question How to find the proper holding tank for my boat?

I am looking to install a holding tank in my 1977 challenger 7.4 sailboat (about 25 ft). I have a few books on doing it but there is one question I have not found an answer for. How do I find one that will fit in my boat? Do any suppliers keep records of what tank shapes will work in what boat brands? My boat a challenger and had about 800 made in Canada so it is a bit more obscure than say a Hunter. I don’t know what size I should buy and in and what shape. I would like to put it in the bottom part of the v-berth or on one side of the v-berth.


Do any of you know of a good company that has experience helping someone figure out the best tank for their boat? I live in a remote location so I can’t take it to a full serves marina because there aren’t any, but I don’t mind doing the work myself.

Thanks for your help
SSBN506 is offline  
Quote Quick Reply Share with Facebook
Sponsored Links
Advertisement
 
post #2 of 17 Old 01-28-2010
Last Man Standing
 
smackdaddy's Avatar
 
Join Date: Aug 2008
Posts: 14,589
Thanks: 155
Thanked 149 Times in 142 Posts
Rep Power: 10
     
I just bought a Todd holding tank for my C27 (from SailNet actually - just click the link to the left to see them). It's been great. Fortunately, I had the old one to compare.

From what I could find in my research, there's not a lot of info (apart from owner's manuals, etc.) on tank size specifics per boat.

Can you just measure the area in which you want the tank? From that, you can have one custom made in any shape you want (which is pretty expensive) - or you can buy a standard "box" tank which is far cheaper - and put it in the space with bracing to make sure it doesn't jump around and spew.


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


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

S/V Dawn Treader - 1989 Hunter Legend 40
smackdaddy is offline  
Quote Quick Reply Share with Facebook
post #3 of 17 Old 01-28-2010
Senior Member
 
JimsCAL's Avatar
 
Join Date: May 2007
Location: Glen Cove, NY
Posts: 2,899
Thanks: 2
Thanked 76 Times in 70 Posts
Rep Power: 9
 
Some thoughts based on my exeperience doing this 15 years ago. Figure out the largest off-the-shelf rigid plastic tank you can fit in. Consider where you will run the hoses and consider the space needed to make bends, etc. You may have to cut away and then re-install some of the vee berth to get the tank in. I did.
JimsCAL is online now  
Quote Quick Reply Share with Facebook
post #4 of 17 Old 01-28-2010
Member
 
Join Date: Apr 2008
Posts: 70
Thanks: 1
Thanked 0 Times in 0 Posts
Rep Power: 8
 
Composting Head

It might be worth considering a composting head. They are self contained and installation would be much simplier.

I'm getting close to replacing my existing head and a composter might work for me. I'd gain space from my curent tank. My current holding capacity is often not enough. The composters boast a good capacity because they are waterless.

Paul
newpbs is offline  
Quote Quick Reply Share with Facebook
post #5 of 17 Old 01-28-2010 Thread Starter
Senior Member
 
SSBN506's Avatar
 
Join Date: Apr 2008
Location: New Brunswick Canada
Posts: 173
Thanks: 2
Thanked 3 Times in 3 Posts
Rep Power: 8
 
Thanks for the advice. Can you get per made ones in a V shape to contour to the shape of the v-berth? If you can figuring out if it has the proper couture i assume could be tricky.

I have a friend who has a composting head in his trawler. Very interesting but from what I have seen quite large.

Last edited by SSBN506; 01-28-2010 at 11:56 AM.
SSBN506 is offline  
Quote Quick Reply Share with Facebook
post #6 of 17 Old 01-28-2010
Senior Member
 
Join Date: Mar 2008
Posts: 536
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 8
 
I faced this problem when Ezell would not supply a replacement tank with different fittings or size. Even when you have the manufacturer you can end up in the same position.

If I was to do it again I think I might go for that composter but room is an issue. Check measurements to see if you can fit one in place.

Designing your own tanks seem to be the only way to get the most out of limited space.


I would suggest designing each side by itself. It is possible to bend the metal to make the tank but that takes more skill than just cutting out 6 odd pieces and welding them together.

Always keep in mind that the company making your tank is not likely to have highly skilled engineers and machinists on staff and if they do they are not likely to build your tank, remember you wanted affordable.

Consider opening the V berth. The projects that cut the whole section out looked like the best to me. Then when the tank fails or you have to work on something you can open the whole thing up just by removing about a 100 bolts, LOL. I still like that set up the best.

I have seen some very complex items made by just cutting cardboard.

By that I mean they took some stiff cardboard and cut it down to fit a side. Then they tape all the sides together, while in place. That became the model. That model was used to create prints and was taken to the machine shop so they could see the product in 3D and have something to compare during construction.

I prefer drawings but think the models are best. I'm pretty sure the last tank I had made was built properly because I gave them a similar tank so they could see what the final product should look like.

I've tried to have stuff built without a model and in one case got back $15G worth of nice looking but not fitting product. Hard to understand with several sheets of autocad prints sitting in their office. Turns out they didn't use the prints, instead they build everything with a little pocket size notebook. When looking at the two pages used in the notebook it was easy to see that they transposed a few numbers and since the notebook was God and the prints never looked at the errors just built on to each other all week, grrr. When someone supplies thousands of dollars worth of prints use them!!! ok ok l know let it go, LOL.

It is much easier to just fit an off the shelf tank and not think of the wasted space.

Have faith that the oceans are going to rise and flood the world, that plague and pestilence brought on by Climate Change is going to punish us for not believing. Please do as they say it is our only hope. :P

Last edited by Architeuthis; 01-28-2010 at 01:02 PM.
Architeuthis is offline  
Quote Quick Reply Share with Facebook
post #7 of 17 Old 01-28-2010
Senior Member
 
mitiempo's Avatar
 
Join Date: Sep 2008
Location: Victoria B.C. Canada
Posts: 7,512
Thanks: 0
Thanked 96 Times in 87 Posts
Rep Power: 8
   
For a holding tank you want plastic or fiberglass if making your own. Metal holding tanks are a disaster waiting to happen with the corrosive qualities of human effluent. Here's a link to an Ontario plastics company that makes custom tanks and tells you how to size them.
Ontario Plastic Fabricators: How To...

Brian
Living aboard in Victoria Harbour

Last edited by mitiempo; 01-28-2010 at 01:32 PM. Reason: correct
mitiempo is offline  
Quote Quick Reply Share with Facebook
post #8 of 17 Old 01-28-2010
Senior Member
 
Join Date: Aug 2006
Location: Arlington, VA
Posts: 1,854
Thanks: 0
Thanked 11 Times in 9 Posts
Rep Power: 11
   
SSBN506,

Ronco Plastics in California makes hundreds of very high quality but very reasonably-priced tanks, including holding tanks.

They have an extensive catalog available online, and can make custom and semi-custom tanks. I bought one for my boat several years ago. It was painless.

Marine Tanks - Ronco Plastics

Bill
btrayfors is offline  
Quote Quick Reply Share with Facebook
post #9 of 17 Old 01-28-2010
Irrationally Exuberant
 
Join Date: Jul 2007
Location: Northern Virginia
Posts: 1,333
Thanks: 9
Thanked 6 Times in 6 Posts
Rep Power: 9
 
I can second the use of Ronco. I just purchased one from them last month and am in the process of installing. The quality is excellent--much tougher than I expected--and they'll put the fittings whereever you want.

I'd check their excellent catalog for as close a fit as you can get.

Tom K

2000 Beneteau 331
Northern Chesapeake Bay

Ambition is a poor excuse for not having enough sense to be lazy ~ Steven Wright
arf145 is offline  
Quote Quick Reply Share with Facebook
post #10 of 17 Old 01-28-2010
Senior Member
 
Join Date: Mar 2008
Posts: 536
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 8
 
Plastic is the way to go. I went metal because all the plastic quotes were way more expensive and I could get a metal tank made locally in a few days. Companies like Ezell coat the inside of their metal tanks but most don't. As a result they can fail after just a few years, though some do seem to last for decades. Those I suspect have been coated inside and the owners just forgot or didn't know.

Have faith that the oceans are going to rise and flood the world, that plague and pestilence brought on by Climate Change is going to punish us for not believing. Please do as they say it is our only hope. :P
Architeuthis 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
First time sail boat buyer martinojon Boat Review and Purchase Forum 20 05-26-2014 09:16 PM
Re-naming the boat pirateofcapeann General Discussion (sailing related) 130 01-07-2014 11:14 AM
Making Passage w/o a Rudder wind_magic Seamanship & Navigation 60 07-16-2010 01:23 PM
Performing in Light Air Brian Hancock Learning to Sail Articles 0 01-15-2003 07:00 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