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

Go Back   iRV2 Forums > THE OWNER'S CORNER FORUMS > Newmar Owner's Forum
Click Here to Login
Join iRV2 Today

Mission Statement: Supporting thoughtful exchange of knowledge, values and experience among RV enthusiasts.
Reply
  This discussion is proudly sponsored by:
Please support our sponsors and let them know you heard about their products on iRV2
 
Thread Tools Search this Thread Display Modes
 
Old 11-26-2020, 03:29 PM   #1
Senior Member
 
Bchtravlr's Avatar
 
Join Date: Apr 2017
Location: Santa Rosa Beach, FL
Posts: 362
Sewer odor in main area - help needed

On our 2020 MA we have struggled with sewer odor anytime the tanks get over 20% full. We use Walex Bio-pack pods in both Grey and Black tanks. I have checked the vent valves in the 1/2 bath and kitchen and they appear to be providing a good seal. We never had this issue in our 17 DS, so we thought we knew how to avoid interior odors. Noe we are looking for additional suggestions.
__________________
Newmar Owners Club
Tom, Dana, and Rolex
23 Newmar ESSEX 4569 with 21 Wrangler 4XE
Bchtravlr is offline   Reply With Quote
Join the #1 RV Forum Today - It's Totally Free!

iRV2.com RV Community - Are you about to start a new improvement on your RV or need some help with some maintenance? Do you need advice on what products to buy? Or maybe you can give others some advice? No matter where you fit in you'll find that iRV2 is a great community to join. Best of all it's totally FREE!

You are currently viewing our boards as a guest so you have limited access to our community. Please take the time to register and you will gain a lot of great new features including; the ability to participate in discussions, network with other RV owners, see fewer ads, upload photographs, create an RV blog, send private messages and so much, much more!

Old 11-26-2020, 03:43 PM   #2
Senior Member
 
WA Larry's Avatar
 
Join Date: Nov 2017
Posts: 102
Change tank treatment to "Happy Campers" and get " 360 Siphon" Roof Vent Caps installed. https://youtu.be/3xX60cCHwlM
__________________
2005 22' Gulf Stream BT Cruiser 5211, Chevrolet Express 6.0L
WA Larry is offline   Reply With Quote
Old 11-26-2020, 03:56 PM   #3
Senior Member
 
Chargerman's Avatar
 
Monaco Owners Club
Join Date: Nov 2015
Posts: 2,281
I had an issue with smell at times when we got on the road. Changed the roof vent to a Cyclone vent. Have never had an issue again.
__________________
Steven & Laurie
2006 Moncaco Executive Ranier
Detrioit Series 60 (515HP), Allison 4000 series
Chargerman is offline   Reply With Quote
Old 11-26-2020, 06:10 PM   #4
Rd1
Senior Member
 
Join Date: Mar 2016
Posts: 813
Quote:
Originally Posted by Bchtravlr View Post
On our 2020 MA we have struggled with sewer odor .....

Tom, there is no reason to be using any kind of deodorizing treatments in your newmar tanks. They are sealed. When there is tank odor present inside the coach, one of the vents is bad or the anti-siphon valve is gone bad. Assume you have the dometic toilets with the macerator (very likely)?



behind the toilet look for the siphon valve behind the toilet, see pic. if you see yellow/brown discoloring (in the white area), it is likely that the valve is leaking.
Attached Thumbnails
Click image for larger version

Name:	MasterBath.jpg
Views:	30
Size:	306.1 KB
ID:	309425  
__________________
17LADP/FCCC
Rd1 is offline   Reply With Quote
Old 11-26-2020, 07:40 PM   #5
Senior Member
 
Vickie 4369's Avatar
 
Join Date: Nov 2012
Location: WATERBURY, CT.
Posts: 1,219
Quote:
Originally Posted by Bchtravlr View Post
On our 2020 MA we have struggled with sewer odor anytime the tanks get over 20% full. We use Walex Bio-pack pods in both Grey and Black tanks. I have checked the vent valves in the 1/2 bath and kitchen and they appear to be providing a good seal. We never had this issue in our 17 DS, so we thought we knew how to avoid interior odors. Noe we are looking for additional suggestions.
Make sure all your sink,shower traps, and washing machine trap have water in them.

When I start out a trip I go around and run all the faucets for a few seconds and run a short rinse cycle in the washer.
__________________
My name is Ted, My coach 2019 NEWMAR Ventana 4369 (Vickie) Cummins L9 451 Horsepower.
Vickie 4369 is offline   Reply With Quote
Old 11-27-2020, 08:13 AM   #6
Moderator Emeritus
 
TXiceman's Avatar
 
Ford Super Duty Owner
Join Date: Aug 2000
Location: Bryan, TX when not traveling.
Posts: 22,945
Blog Entries: 21
Check the static vents in the sink cabinets.

Ken
__________________
Amateur Radio Operator (KE5DFR)|No Longer Full-Time! - 2023 Cougar 22MLS toted by 2022 F150, 3.5L EcoBoost Tow Max FX4 Lariat Travel with one Standard Schnauzer and one small Timneh African Gray Parrot, retired mechanical engineer
TXiceman is offline   Reply With Quote
Old 11-27-2020, 06:23 PM   #7
Senior Member
 
Breezy2006's Avatar
 
Join Date: Jan 2017
Posts: 464
I think this will get you on the right path


Half bath pipe puzzle
https://www.irv2.com/forums/f103/half-bath-pipe-puzzle-469370.html
__________________
2017 Newmar Dutchstar 4369
Spartan - ISL 450 Cummins
2016 Jeep Grand Cherokee tow
Breezy2006 is offline   Reply With Quote
Old 11-28-2020, 06:24 AM   #8
Senior Member
 
Join Date: Mar 2009
Location: Apollo Beach & Key West , FL
Posts: 3,810
Check your washing machine drain.... that's where our odor was coming from
__________________
2013 DS 4338
2015 F-150 toad with kayaks,bicycles and a Harley in the back
PanJH is offline   Reply With Quote
Old 11-28-2020, 07:06 AM   #9
Senior Member
 
SteveUpp's Avatar
 
Join Date: Nov 2013
Location: Fulltime Nomads
Posts: 244
In our case, we would get a sewer odor when traveling but not while stationary with the slides out. Turned out the kitchen drain which had a flexible tube to the tank below had developed a small crack that would be stretched open when the slide was in and the hose 'bent' up under the cabinet. When the slide was out the bend was less because the hose extended .. closing the small gap.

Replaced the hose and no problems since.
__________________
Steve & Karen Upp
2019 Newmar New Aire 3341 (1620W solar, 1200AH Lithionics LiFePO4 Batteries)
2021 Ford F150 PowerBoost
SteveUpp is offline   Reply With Quote
Reply

Tags
odor



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
Mold Odor/Musty Odor sdesha Entegra Owner's Forum 14 04-08-2020 06:45 AM
Strong Smell of Sewer Odor in Bathroom sink area delcirose Travel Supreme Owner's Forum 8 08-31-2011 12:37 PM
Sewer odor in Coach solved johnwr Alpine Coach Owner's Forum 0 07-11-2009 09:31 PM
Sewer Odor gator67 Alpine Coach Owner's Forum 17 10-02-2007 06:25 PM
sewer odor ruining good times LKS RV Systems & Appliances 10 07-28-2005 11:01 PM

» Featured Campgrounds

Reviews provided by


All times are GMT -6. The time now is 11:10 PM.


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