Journey with Confidence RV GPS App RV Trip Planner RV LIFE Campground Reviews RV Maintenance Take a Speed Test Free 7 Day Trial ×
 


Reply
 
Thread Tools Search this Thread Display Modes
 
Old 01-22-2011, 10:20 AM   #1
Winnebago Owner
 
Join Date: Nov 2010
Location: Surrey, B.C.
Posts: 50
Vacuum Breaker Issue

I have read all the posts regarding the subject of vacuum breakers however I still do not understand how I can determine which vacuum breaker is causing the problem.
A recent problem is sewer odor after dumping the black and grey water tanks in my 2007 Class A, Itasca Sunrise, 35A. I have been able to locate one vacuum breaker behind the washing machine and another one under my bathroom sink. Would both of these breakers allow air into the grey and black water tanks for venting or only the grey water? Would there be other vacuum breakers hidden away somewhere in the rig? How can I isolate which breaker is causing the problem??

Any suggestion would be appreciated.

Knightly
Knightly is offline   Reply With Quote
Old 01-22-2011, 07:42 PM   #2
iRV2 Marketing
 
DriVer's Avatar
 
Join Date: Jan 2000
Location: Conway, SC
Posts: 886
Quote:
Originally Posted by Knightly View Post
I have read all the posts regarding the subject of vacuum breakers however I still do not understand how I can determine which vacuum breaker is causing the problem. Any suggestion would be appreciated.
Knightly, My response is going to be very simple. It is possible to pull the water out of the traps when you are dumping your tanks although it's not something that I have consistently seen. Most often when we travel down the road we might loose the water in the trap and the tank gases may intrude into the cabin. This happens to us most often from the washing machine trap. I have to run the washing machine for just a few moments to fill the trap and no more odors.
__________________
03 Adventurer 38G, Workhorse W22
F&R Track Bars, Safety+ , Ultrapower, Taylor Extremes, SGII
TST 507, Blue Ox, SMI, Koni FSD, CrossFire
RV/MH Hall of Fame - Lifetime Member
DriVer is offline   Reply With Quote
Old 01-22-2011, 07:50 PM   #3
KIX
Winnebago Master
 
KIX's Avatar
 
Join Date: Dec 2006
Location: St. Augustine, FL
Posts: 587
Knightly......... go to Winnebago Industries then click on 'resources" then "diagrams & manuals" then look for plumbing diagrams for your coach. You should be able to find the answers to your questions
__________________
KIX
'02 Ultimate Advantage 40J Spartan MM - Cummins ISC
KIX is offline   Reply With Quote
Old 01-22-2011, 09:18 PM   #4
Winnebago Camper
 
Join Date: Apr 2010
Posts: 26
rather than try to determine which breaker might be the problem just replace all. They are around 6 dollars at lowes/Home Depot
RVhauler is offline   Reply With Quote
Old 01-23-2011, 11:00 AM   #5
Winnebago Master
 
DancinCampers's Avatar
 
Join Date: Nov 2004
Location: On the Road Westward
Posts: 711
There should be another one under kitchen sink.

Only grey water tank I believe, unless one of your sinks, shower or washing machine empties into your black tank.

Running basement air creates negative pressure inside coach, might try keeping it off during dump.

Also, might try setting ceiling fan vents to push air into coach while dumping.
__________________
Dan & Sharon & Kasey (Our Yorkie Puppy (12 Yrs Old) On the Road (2012 Journey 36M, 2006 Jeep Liberty)
USN-Ret ('65-'93) Fulltimers, Class of 2012
DancinCampers is offline   Reply With Quote
Old 01-23-2011, 06:21 PM   #6
Winnebago Owner
 
Join Date: Nov 2010
Location: Surrey, B.C.
Posts: 50
Yes, there is a third vacuum breaker in my unit, one under the kitchen sink, one under the bathroom sink plus one behind the washing machine according to the Itasca site diagram. I now have several ideas, so I will pursue further. Thanks to everybody for all the advice.

Knightly
2007 Itasca 35A W24
Knightly is offline   Reply With Quote
Old 01-24-2011, 12:54 PM   #7
Winnebago Master
 
wa8yxm's Avatar
 
Join Date: Mar 2009
Posts: 851
How to figure out which breaker is not sealing properly......

The nose knows... All you can do is sniff it out.... Takes time for the stink to travel so either have your partner sniff while you dump or you sniff while partner dumps.... May take a few dumps to be sure.
__________________
Home is where I park it!
[SIGPIC][/SIGPIC]
wa8yxm is offline   Reply With Quote
Old 01-24-2011, 01:15 PM   #8
Winnebago Owner
 
Always-RVing's Avatar
 
Join Date: Aug 2009
Posts: 52
Are you guys talking about the air-vents under each sink, etc? They have a rubber waffer that opens up as water rushes down the drain. This stops a vacuum from building up behind the water flow. The air vent is required for each drain that does not have an external pipe running out of the roof.

Check Vent: You can see if they are bad by removing it and holding a flashlight up to it. There should not be any light getting through. You can try cleaning it. Sometimes that works, sometimes it does not.

There are various grades or quality check-vents. Some are very cheap and do not last.

The problem is when they do not close and the rubber flat doesn't seat.

They are easily removed by unscrewing (by hand). Tighten gently.. There's no need to over tighten. If they do not seat properly, foul sewage gasses from your waste tanks will emit from them.
Attached Thumbnails
Click image for larger version

Name:	checkvent1.jpg
Views:	336
Size:	10.0 KB
ID:	7863  
__________________
Fleetwood Providence 2008 40e
Ford F-350 4x4 Diesel 6.0L 2006
Honda CR-V 2006
Always-RVing is offline   Reply With Quote
Old 01-28-2011, 03:17 PM   #9
Winnebago Owner
 
Join Date: Dec 2009
Location: Las Vegas, NV
Posts: 228
Batman_777 is on the money.

Also, swimming pool stores sell a waterproof lubricant used in pumps and filters. They help seal the internal flange against air/water passage. I've used it for 25 years.

Kerry
two-niner is offline   Reply With Quote
Reply


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools Search this Thread
Search this Thread:

Advanced Search
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


Similar Threads
Thread Thread Starter Forum Replies Last Post
vacuum breaker under bathroom sink Daddy's truck Plumbing | Systems and Fixtures 16 04-12-2009 07:19 AM
Vacuum Breaker Ptribbey Plumbing | Systems and Fixtures 6 02-15-2007 03:08 AM

» Featured Campgrounds

Reviews provided by

Disclaimer:

This website is not affiliated with or endorsed by Winnebago Industries or any of its affiliates. This is an independent, unofficial site.


All times are GMT -6. The time now is 12:43 AM.


Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2024, vBulletin Solutions, Inc.