New boat. I can't pump out either holding tank - SailNet Community
 2Likes
  • 2 Post By Gusnyc
 
LinkBack Thread Tools
post #1 of 10 Old 07-03-2013 Thread Starter
Junior Member
 
Join Date: Aug 2010
Location: New York City
Posts: 24
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 0
 
New boat. I can't pump out either holding tank

Hello!

I will try to be short to explain the problem, which is very frustrating.

I recently got a Sense 46. The head is Vacuflush/Sailvac (I don't have experience with this system). I did two pump outs, but the third time, it stopped working. The holding tank can't be pumped out. The vent that goes to the hull seems to be clean (but it seems it was designed to exhaust the air, not to take air when you do the pump out). I tried with two pumps. It seems air is not entering the system.

I am 100% sure we used only the fast dissolve toilet paper and I followed all the instructions for the pump out (opening the "ball" in the WC and closing the water valve).

Am I missing something? I will have to cancel a 5 day trip because of this problem.

Any help will be more than welcomed.

THANK YOU!

Gus

Last edited by Gusnyc; 07-03-2013 at 04:32 PM.
Gusnyc is offline  
Quote Quick Reply Share with Facebook
Sponsored Links
Advertisement
 
post #2 of 10 Old 07-03-2013
me at 67!
 
deniseO30's Avatar
 
Join Date: Nov 2006
Location: Bristol pa
Posts: 6,970
Thanks: 55
Thanked 126 Times in 115 Posts
Rep Power: 10
   
Re: New boat. I can't pump out either holding tank

maybe they are already empty? jus sayin... Or you could try disconnecting the vent. Seems to me the pump out will pull it out of the tank vented or not. Are the pump outs using badly maintained nozzles? One up here is a terrible waste of time when trying to use it.

Denise, Bristol PA, Oday 30. On Tidal Delaware River, Anchor Yacht Club.
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.

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


My boat is sold!
deniseO30 is offline  
Quote Quick Reply Share with Facebook
post #3 of 10 Old 07-03-2013 Thread Starter
Junior Member
 
Join Date: Aug 2010
Location: New York City
Posts: 24
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 0
 
Re: New boat. I can't pump out either holding tank

Thanks for your reply Denise. One tank is full, the other one is 3/4 full. I don't trust the indicators that much, but I know because of the time the pump takes to create the vacuum.

The weird thing is that the tanks were emptied with the same nozzles a few weeks ago, and now they are not working. It also happens with both tanks. The sailboats around me are being emptied with the same barge/pumps and they don't have a problem.

I am very frustrated. Everything is under warranty, but it may take more than a week until a technician comes to see the boat. In the meantime, I can't use it.
Gusnyc is offline  
Quote Quick Reply Share with Facebook
post #4 of 10 Old 07-03-2013
Irrationally Exuberant
 
Join Date: Jul 2007
Location: Northern Virginia
Posts: 1,333
Thanks: 9
Thanked 6 Times in 6 Posts
Rep Power: 9
 
Re: New boat. I can't pump out either holding tank

I'd try disconnecting the vent hose from the tank, as Denise suggested. Did you get any docs on the Vacuflush? Any special instructions on pumping out in there?

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 #5 of 10 Old 07-03-2013 Thread Starter
Junior Member
 
Join Date: Aug 2010
Location: New York City
Posts: 24
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 0
 
Re: New boat. I can't pump out either holding tank

Hi Tom, I did disconnect the vent hose (I forgot to clarify that to Denise). There is a rubber, conical plug that seems to be designed not for air intake, but to release the air (and gas) that the holding tank generates.

I've been checking online, and I found a post that mentions the duckbill valve on the conduit that goes to the deck. Maybe that is clogged? Could that be the reason?
Gusnyc is offline  
Quote Quick Reply Share with Facebook
post #6 of 10 Old 07-03-2013
me at 67!
 
deniseO30's Avatar
 
Join Date: Nov 2006
Location: Bristol pa
Posts: 6,970
Thanks: 55
Thanked 126 Times in 115 Posts
Rep Power: 10
   
Re: New boat. I can't pump out either holding tank

could there be a valve you don't know about? or the (if it has one) 3way valve to discharge overboard?
Lots of piping photos here;

The West Advisor: Heads Holding Tanks

With a trip planned I'd find a way.. CUT AND REROUTE!

Denise, Bristol PA, Oday 30. On Tidal Delaware River, Anchor Yacht Club.
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.

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


My boat is sold!

Last edited by deniseO30; 07-03-2013 at 05:56 PM.
deniseO30 is offline  
Quote Quick Reply Share with Facebook
post #7 of 10 Old 07-03-2013
Senior Member
 
THEFRENCHA's Avatar
 
Join Date: Jan 2003
Posts: 143
Thanks: 1
Thanked 2 Times in 2 Posts
Rep Power: 13
 
Re: New boat. I can't pump out either holding tank

Do you have a direct access port on top of tank?
Usually a big cap screwd to be used when you want to look at things inside tank.

Just open a insert pump nose

A big of smell might vent inside boat but at least tanks will be empty
THEFRENCHA is offline  
Quote Quick Reply Share with Facebook
post #8 of 10 Old 07-03-2013
me at 67!
 
deniseO30's Avatar
 
Join Date: Nov 2006
Location: Bristol pa
Posts: 6,970
Thanks: 55
Thanked 126 Times in 115 Posts
Rep Power: 10
   
Re: New boat. I can't pump out either holding tank

duckbill valves are the same as check valves... could be your problem. gas and air get out but can't get back in

Denise, Bristol PA, Oday 30. On Tidal Delaware River, Anchor Yacht Club.
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.

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


My boat is sold!
deniseO30 is offline  
Quote Quick Reply Share with Facebook
post #9 of 10 Old 07-03-2013
Tartan 27' owner
 
CalebD's Avatar
 
Join Date: Jan 2008
Location: NYC
Posts: 4,783
Thanks: 5
Thanked 109 Times in 101 Posts
Rep Power: 8
 
Re: New boat. I can't pump out either holding tank

dauber wasps and other insects can make a home in your vent line too.
If it is not a check valve then something is clogging up your holding tank vent.
I've seen a dauber wasp nest in a vent on a sailboat in the Chessy so why not up here in NY?
Tank would not pump until vacuum caused by nest/obstruction was removed. Air needs to replace the former contents of tank for the pump to work.

"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.
CalebD is online now  
Quote Quick Reply Share with Facebook
post #10 of 10 Old 07-09-2013 Thread Starter
Junior Member
 
Join Date: Aug 2010
Location: New York City
Posts: 24
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 0
 
Re: New boat. I can't pump out either holding tank

Thanks for all the answers. It seems there is a problem with the duckbill valves. They have to be replaced with a new system, that Dometic is providing for free. The system was repaired by a technician, but there is still work to be done.
deniseO30 and jimgo like this.
Gusnyc is offline  
Quote Quick Reply Share with Facebook
Reply

Tags
head , pump out , sailvac , sense , vacuflush

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
Holding tank Pump Out placement thepoco Announcements and Suggestions Box 4 10-21-2010 01:05 PM
Holding tank pump out design options. SSBN506 Gear & Maintenance 19 10-20-2010 09:23 AM
Holding tank not empty after pump out? cghubbell Gear & Maintenance 4 09-15-2009 10:04 PM
Holding tank pump-out question dmcgraw Gear & Maintenance 24 06-13-2007 08:37 PM
Holding Tank Pump Out Not Working pma_foyl Gear & Maintenance 4 08-03-2004 04:14 AM

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