Cruisers Forum
 


Join CruisersForum Today

Reply
 
Thread Tools Rate Thread Display Modes
Old 01-06-2015, 19:39   #1
Registered User

Join Date: Jun 2015
Location: Philadelphia
Boat: Four Winns Vista 348
Posts: 2
Vacuflush

Just bought a Four Winns Vista 348 and the vacuum pump keeps activating every 10 minutes or so. It cycles a few times, then shuts off. 10 minutes later it does it all over again. Head flushes fine.
__________________

__________________
philarick is offline   Reply With Quote
Old 01-06-2015, 19:58   #2
Senior Cruiser
 
Lancerbye's Avatar

Cruisers Forum Supporter

Join Date: Mar 2007
Location: Ladysmith,BC, Vancouver Island , Canada
Boat: Lancer 44 Motorsailer
Posts: 1,758
Images: 32
Re: Vacuflush

You have a little leak somewhere. Do you see water left in the bowl? Check for small pieces of TP caught between valve and seal.
__________________

__________________
The basis of accomplishment is in never quitting
Mengzi Meng-tse
Lancerbye is offline   Reply With Quote
Old 01-06-2015, 20:02   #3
Registered User

Join Date: Sep 2012
Location: Newfoundland
Boat: Tayana 55
Posts: 34
Re: Vacuflush

there are duck bill valves in the system. probably 2 inline on the vacuum side of the diaphram pump as well as one just as the vacuum line leaves each head. they need replacing every so often as they get brittle and loose and don't close tightly resulting in slow loss of vacuum pressure which then engages your pump sporadically. have a look at the vacuum gauge for those 10 minutes to confirm vacuum loss to see if what I refer to is the problem.
__________________
Ocean Cowbuoy is offline   Reply With Quote
Old 01-06-2015, 20:05   #4
Registered User

Join Date: Jun 2015
Location: Philadelphia
Boat: Four Winns Vista 348
Posts: 2
Re: Vacuflush

Thank you. I'll take a look. They probably have never been changed. Hopefully they are easy to find.
__________________
philarick is offline   Reply With Quote
Old 01-06-2015, 20:12   #5
Registered User

Join Date: Sep 2012
Location: Newfoundland
Boat: Tayana 55
Posts: 34
Re: Vacuflush

they are situated in the flanges that bolt to the diaphram pump and to the vacuum cylinder on each head. they actually insert inside the flanges..make sure to order the same size and have the duck bill facing the same way as the one you took out. i recommend (for any repair) to take pics of it before and during your dissasembly so you can reference the pics when reassembling. learned that the hard way.
__________________
Ocean Cowbuoy is offline   Reply With Quote
Old 01-06-2015, 21:14   #6
Marine Service Provider
 
peghall's Avatar

Community Sponsor
Cruisers Forum Supporter

Join Date: Feb 2011
Posts: 1,533
Re: Vacuflush

Quote:
Originally Posted by philarick View Post
Just bought a Four Winns Vista 348 and the vacuum pump keeps activating every 10 minutes or so. It cycles a few times, then shuts off. 10 minutes later it does it all over again. Head flushes fine.
Leaking duckbill valves are the most likely reason for the pump cycling for no reason between flushes. There are 4 duckbill valves in the vacuum pump--two on the inbound side, 2 on the outbound side. All four should be replaced every couple of years because--like joker valves in other toilets--the slits become stretched with use and cease to seal completely, creating an air leak. A drop in "vacuum" turns the pump on long enough to restore it.

You need a trouble shooting guide, which is in the owners manual. The V/Flush has changed so little except cosmetically since it was first introduced by Mansfield Plumbing in 1978 that age and model (model only applies to the bowl) doesn't matter...the same trouble shooting guide applies no matter which one you have. I've saved it to a PDF that I'll be glad to send to you or anyone else who'd like to email me (EMAIL, not a PM)...and I'll also attach a piece I wrote called "VacuFlush 101" that should help you reduce the need to trouble shoot it considerably.
__________________
2017 Peggie Hall
Specializing in marine sanitation since 1987
Author "The NEW Get Rid of Boat Odors"
https://www.amazon.com/New-Get-Rid-B...dp/1892399784/
peghall is offline   Reply With Quote
Reply

Thread Tools
Display Modes Rate This Thread
Rate This Thread:

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


Similar Threads
Thread Thread Starter Forum Replies Last Post
Troubleshooting Vacuflush SV Demeter Plumbing Systems and Fixtures 53 27-11-2017 09:12
Using a Plunger on Vacuflush Bob51 Plumbing Systems and Fixtures 18 20-01-2012 21:20
Sealand's VacuFlush Inkwell Plumbing Systems and Fixtures 21 13-05-2009 15:39
Vacuflush head plugged ezwoo Plumbing Systems and Fixtures 14 19-02-2007 20:37
Raritan, Vacuflush Head Strygaldwir Construction, Maintenance & Refit 6 09-10-2005 07:47



Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -7. The time now is 00:39.


Google+
Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, vBulletin Solutions, Inc.
Social Knowledge Networks
Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, vBulletin Solutions, Inc.

ShowCase vBulletin Plugins by Drive Thru Online, Inc.