Reply
 
Thread Tools Display Modes
 
Old 07-07-2014, 03:47 PM   #1
Guru
 
Max Simmons's Avatar
 
City: Everett, WA
Vessel Model: Ocean Alexander 38'
Join Date: Oct 2007
Posts: 527
vac-u-flush. not

Took the boat out over the weekend for a few days and the master head toilet has decided to not flush. Bowl fills with water fine. When you press down on the pedal, the ball opens up, some water leaves the bowl, but more due to gravity than suction. The accumulator pump runs, and continues to run, but no suction out of the bowl. Is this typical of a blockage issue? There have been no women aboard for some time (sadly) so I know nothing has gone down the bowl that shouldn't have. Was working great one minute, then not so the next.
I have been extremely lucky (knocking on wood) with this system and have had almost zero issues in the 8 years I've owned the boat.
I did briefly look at the Dometic site for answers, but being kinda lazy, thought I'd reach out to see if anyone could point me in the right direction.
__________________
Advertisement

Max Simmons is offline   Reply With Quote
Old 07-07-2014, 04:19 PM   #2
Guru
 
bligh's Avatar
 
City: Santa Cruz, CA
Country: USA
Vessel Name: Frisky
Vessel Model: 99 Nordic Tug
Join Date: May 2013
Posts: 1,096
check the duckbill valves.
__________________

bligh is offline   Reply With Quote
Old 07-07-2014, 05:30 PM   #3
Guru
 
rochepoint's Avatar
 
City: Sidney BC
Country: Canada
Vessel Name: Rochepoint
Vessel Model: 1985 Cheer Men PT38 Sedan
Join Date: Apr 2009
Posts: 1,191
Quote:
Originally Posted by bligh View Post
check the duckbill valves.
+1.....
__________________
Cheers Mike Barge
MV Rochepoint
Sidney, British Columbia.
"Yes, I have the right anchor"
rochepoint is online now   Reply With Quote
Old 07-07-2014, 05:54 PM   #4
Guru
 
Alaskan Sea-Duction's Avatar
 
City: Inside Passage Summer/Columbia River Winter
Country: USA
Vessel Name: Alaskan Sea-Duction
Vessel Model: 1988 M/Y Camargue YachtFisher
Join Date: Jul 2012
Posts: 3,128
Might be plugged. If you think it is plugged go to Wal-Mart and get one of these. Then turn off your water, turn on your pump, insert the end into the hole (kinda screw it in) and pump. You will know when the clog goes bye bye. So far it has worked 100% of the time for me. This is a great Vacu-Flush tool to have on board.

__________________
1988 M/Y Camargue Yacht Fisher
Alaskan Sea-Duction
MMSI: 338131469
Blog: http://alaskanseaduction.blogspot.com/
Alaskan Sea-Duction is offline   Reply With Quote
Old 07-07-2014, 06:26 PM   #5
Guru
 
caltexflanc's Avatar
 
City: North Carolina for now
Country: USA
Vessel Name: Small Incentive
Vessel Model: Boston Whaler 130 Sport
Join Date: Aug 2011
Posts: 3,783
Quote:
Originally Posted by Alaskan Sea-Duction View Post
Might be plugged. If you think it is plugged go to Wal-Mart and get one of these. Then turn off your water, turn on your pump, insert the end into the hole (kinda screw it in) and pump. You will know when the clog goes bye bye. So far it has worked 100% of the time for me. This is a great Vacu-Flush tool to have on board.

Yikes! Sometimes it is better to be lucky than good, I guess. Those things can invert the duckbills in a heartbeat, and screw up the vacuum switch, especially on the split systems.
__________________
George

"There's the Right Way, the Wrong Way, and what some guy says he's gotten away with"
caltexflanc is online now   Reply With Quote
Old 07-07-2014, 07:53 PM   #6
Guru
 
City: Tuckerton, NJ
Country: USA
Vessel Name: WIRELESS ONE
Vessel Model: 36 Gulstar MarkII
Join Date: Mar 2011
Posts: 937
1st open up the duckbills on each side of the vacuum generator. There should be 2 on each side of the vacuum generator. I'm betting after 8 years they need to be replaced it's a DYI job. Otherwise they could have a string wrapped around them.... Either way you must open them up when replacing use soapy water so they don't distort.
Bill
Billylll is offline   Reply With Quote
Old 07-07-2014, 07:55 PM   #7
Guru
 
bligh's Avatar
 
City: Santa Cruz, CA
Country: USA
Vessel Name: Frisky
Vessel Model: 99 Nordic Tug
Join Date: May 2013
Posts: 1,096
If the pump is continuously running and the toilet is not flushing, its unlikely there is a clog between the head and the accumulator tank.
bligh is offline   Reply With Quote
Old 07-07-2014, 07:59 PM   #8
Guru
 
fryedaze's Avatar
 
City: Solomons Island Md
Country: USA
Vessel Name: Fryedaze
Vessel Model: MC 42 (Overseas Ltd) Monk 42
Join Date: Sep 2011
Posts: 1,052
Is the vacuum pump running more than a minute?
If the duck bills look good then check the holding tank vent. If the holding tank vent is blocked the pump will continue to run because it cant reach the vac pressure setting. Just had that problem on a sailboat yesterday.
__________________
Dave Frye
Fryedaze, MC 42 (Monk 42') 1989 Overseas Co
http://mvfryedaze.blogspot.com/
fryedaze is online now   Reply With Quote
Old 07-07-2014, 07:59 PM   #9
GFC
Guru
 
GFC's Avatar
 
City: Tri Cities, WA
Country: USA
Vessel Name: Beachcomber
Vessel Model: Sea Ray 550 Sedan Bridge
Join Date: Nov 2012
Posts: 2,684
Here's an easier way to clear a clog than the plunger above. Turn off the water and the head system pump. Get one of those kid's plunger type squirt gun ("blaster" is one brand). Use it to empty all the water out of the bowl and the compartment beneath the bowl.

Once that's empty you'll be able to see the drain hole in the bottom that's about 1.5" in diameter. That could be where your plug is. If that's it, get a long screwdriver or something to break up the plug. What I use is a large kitchen cooking spoon to remove the plug. Of course that means you can't tell your wife about it and you have to sneak the spoon home and run it through the dishwasher.
__________________
Mike and Tina
Beachcomber 1995 Sea Ray 550 Sedan Bridge
GFC is offline   Reply With Quote
Old 07-07-2014, 08:18 PM   #10
TF Site Team
 
Larry M's Avatar
 
City: JAX, FL
Country: USA
Vessel Name: Hobo
Vessel Model: Krogen 42-120
Join Date: Nov 2008
Posts: 5,719
Quote:
Originally Posted by bligh View Post
If the pump is continuously running and the toilet is not flushing, its unlikely there is a clog between the head and the accumulator tank.
You can have a clog at the outlet of the vacuum tank before the pump. The pump will run since the pressure switch hasn't run up to it's set cut off point. This will explain why the water doesn't drain out of the bowl but the pump continues to run. Where's the Head Mistress when you need her?
Larry M is offline   Reply With Quote
Old 07-07-2014, 08:50 PM   #11
Guru
 
HeadMistress's Avatar


 
City: AR
Country: USA
Join Date: Jul 2009
Posts: 1,186
Why doesn't ever occur to anyone but me....

...that the problem may be as simple as a blocked holding tank vent, creating backpressure that prevents the bowl contents from going anywhere. If the toilet flushes ok the first time after the toilet hasn't been used for a while, it's because the pressure in the tank has had time to dissipate a bit.

That's the FIRST thing I'd check, anyway. If that's not it...

The VacuFlush has changed so little since it was first invented by Mansfield Plumbing in the lates 1970s that the trouble shooting guide--which includes just about every possible symptom, probable causes and cures that the d'd thing can develop is the same for every version/model/year. I've turned it into a PDF that I'll be glad to attach to a reply to an email from any of you who'd like to have one. Email to (my.name) at gmail dot com.
__________________
2017 Peggie Hall
Specializing in marine sanitation since '87.
Author "The NEW Get Rid of Boat Odors"
HeadMistress is offline   Reply With Quote
Old 07-07-2014, 10:22 PM   #12
Guru
 
City: Tuckerton, NJ
Country: USA
Vessel Name: WIRELESS ONE
Vessel Model: 36 Gulstar MarkII
Join Date: Mar 2011
Posts: 937
Peggy assuming he has a single holding tank he did say the master head was the head having a problem, not likely if he has 2 heads and a single holding tank. Then again he could have a single head!
Bill
Billylll is offline   Reply With Quote
Old 07-07-2014, 11:09 PM   #13
Guru
 
BruceK's Avatar
 
Join Date: Oct 2011
Posts: 7,552
When this is resolved can someone please tell Holland America Lines. As operators of the Oosterdam they`d be very interested.
__________________
BruceK
Island Gypsy 36 Europa "Doriana"
Sydney Australia
BruceK is offline   Reply With Quote
Old 07-08-2014, 11:15 AM   #14
Guru
 
Alaskan Sea-Duction's Avatar
 
City: Inside Passage Summer/Columbia River Winter
Country: USA
Vessel Name: Alaskan Sea-Duction
Vessel Model: 1988 M/Y Camargue YachtFisher
Join Date: Jul 2012
Posts: 3,128
Quote:
Originally Posted by caltexflanc View Post
Yikes! Sometimes it is better to be lucky than good, I guess. Those things can invert the duckbills in a heartbeat, and screw up the vacuum switch, especially on the split systems.
I have a split system and it hasn't affected it yet. I only use this is I know I have plugged the system.

Peggie has given some most excellant advice....
__________________
1988 M/Y Camargue Yacht Fisher
Alaskan Sea-Duction
MMSI: 338131469
Blog: http://alaskanseaduction.blogspot.com/
Alaskan Sea-Duction is offline   Reply With Quote
Old 07-09-2014, 02:56 PM   #15
Guru
 
Max Simmons's Avatar
 
City: Everett, WA
Vessel Model: Ocean Alexander 38'
Join Date: Oct 2007
Posts: 527
I have 2 heads and 2 accumulator tanks, one holding. I did try the master head with the pump out cap removed to see if it was the breather, but same result. Forward head works fine. Haven't yet had time to get my "head" into it.
Max Simmons is offline   Reply With Quote
Old 07-09-2014, 05:16 PM   #16
Guru
 
caltexflanc's Avatar
 
City: North Carolina for now
Country: USA
Vessel Name: Small Incentive
Vessel Model: Boston Whaler 130 Sport
Join Date: Aug 2011
Posts: 3,783
Quote:
Originally Posted by Alaskan Sea-Duction View Post
I have a split system and it hasn't affected it yet. I only use this is I know I have plugged the system.
See my sig line.
__________________
George

"There's the Right Way, the Wrong Way, and what some guy says he's gotten away with"
caltexflanc is online now   Reply With Quote
Old 10-12-2014, 06:10 PM   #17
Senior Member
 
mike66's Avatar
 
City: Warwick, RI
Country: USA
Vessel Name: Susan Helena
Vessel Model: Albin40
Join Date: Oct 2014
Posts: 179
I had a plug up in our aft head. Slow water drainage (very slow) with no vacuum. Forward head was fine. ( single vacuum pump for both heads.) Cautious plunging did nothing. Dumped in half a bottle of CP treatment and let it drain down with the supply water off. Let it sit and 24hrs later it flushed right through with strong vacuum again.
mike66 is offline   Reply With Quote
Old 10-12-2014, 07:38 PM   #18
Guru
 
windmill29130's Avatar
 
City: Little River SC
Vessel Name: JAZ
Vessel Model: Ta Chaio/CT35
Join Date: Jan 2011
Posts: 716
Quote:
Originally Posted by rochepoint View Post
+1.....
++1

Nasty Job!
__________________

__________________
Tracy & Susie Hellman 1985 Ta Chiao CT 35
Twin Lehman Super 90's Westerbeke 4.4kw
Lightkeepers Marina -Little River, SC
windmill29130 is offline   Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not 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 Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off





All times are GMT -5. The time now is 07:33 PM.


Powered by vBulletin® Version 3.8.8 Beta 4
Copyright ©2000 - 2017, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.0
Copyright 2006 - 2012