WELCOME TO RIVER DAVES PLACE

Ass smell when driving Moho

DUNEFLYER

The original DUNEFLYER of RDP 😁
Joined
Dec 22, 2008
Messages
1,033
Reaction score
2,610
Get a terrible ass smell (actually grey water smell) when driving the Moho after a camping trip. Seems to be coming from under/around one of the bathroom sinks. Looked around and found these vents under each sink. Not sure if this is where the smell is coming from but seems like the only source.
The grey tank is vented thru the roof so why do I need these vents at each sink?
What happens if I tape o er or cap off these vents?
DE36D28C-F165-48E7-AC05-5315DC620F3A.jpeg
94270789-8810-48B5-A742-1117F388E0CA.jpeg
 

dspracing

Well-Known Member
Joined
Apr 6, 2010
Messages
1,558
Reaction score
2,819
If my Grey tank is above 1/2 it will vent up through the kitchen sink when I hit the brakes. I installed a ball valve in the drain line so I can shut it off for the ride home.
 

Icky

Well-Known Member
Joined
Jan 11, 2015
Messages
7,873
Reaction score
9,453
I put chemicals in my grey tank as well as flush it periodically
 

Nanu/Nanu

Don't wait til' life's easy to be happy
Joined
Jul 30, 2020
Messages
2,564
Reaction score
4,605
Yeah my grey tank always springs a leak on the way home somehow.
 

Drew

Banned
Joined
Oct 13, 2015
Messages
850
Reaction score
1,968
The vent is to stop the siphon a tech trap. It’s to keep water in the trap. If you thought it smelled bad before lol it will smell just like your in the tank
 

Sandlord

Well-Known Member
Joined
Mar 28, 2011
Messages
10,124
Reaction score
24,301
My plumbing looks a little different but I occasionally pour some liquid Blue toilet chem in each of the sinks and in the shower.
Then, before I start rolling I run some water in every drain to make sure the trap is full. I also close the sink drain and put a rubber mat over the shower drain.
The only time I get oder is when someone flushes while I’m driving with a full black tank.
 

Done-it-again

Well-Known Member
Joined
Apr 3, 2016
Messages
8,822
Reaction score
10,841
I’m thinking, If you cap off those vents the sink drain lines wouldn’t drain in to the grey tank.

Used to have the issues using the mohome in glamis and driving home. Would smell of 7 days black tank brew once we started on the highway.

I put one of those fins that spin in the direction you are driving on the vent tube that sticks out on the roof and replaced the toilet seal. Not sure what one worked but no more smell.

The weird part was. It never smelled in the back only up front.
 

Mcob25rg

Well-Known Member
Joined
Aug 2, 2017
Messages
1,499
Reaction score
2,826
This will fix it. Use Happy Camper in BOTH the grey tank, as well as the black tank. Follow instructions EXACTLY, using HOT water in both works the best. I use the shower, and the toilet because of proximity. Also, sanitize fresh water tank - bleach with fill up, drain, fill up with fresh, and drain. I have a 2021 MH - started to get smells within the first 3 months - was ready to sell at a loss to get rid of problem. Went the above route, smells like a new camper at all times, under all conditions, and temps - this is one of the few products i've ever purchased that works BETTER than advertised - hope i fixed your troubles
 

River Runnin

Well-Known Member
Joined
Jun 17, 2008
Messages
5,513
Reaction score
8,023
Quit farting for shit sakes! And Happy camper will make you happy!
 

ONE-A-DAY

Well-Known Member
Joined
May 21, 2010
Messages
18,098
Reaction score
25,629
This will fix it. Use Happy Camper in BOTH the grey tank, as well as the black tank. Follow instructions EXACTLY, using HOT water in both works the best. I use the shower, and the toilet because of proximity. Also, sanitize fresh water tank - bleach with fill up, drain, fill up with fresh, and drain. I have a 2021 MH - started to get smells within the first 3 months - was ready to sell at a loss to get rid of problem. Went the above route, smells like a new camper at all times, under all conditions, and temps - this is one of the few products i've ever purchased that works BETTER than advertised - hope i fixed your troubles
I have been very happy after finding Happy Camper, and I drop some monsters in the morning, never had any issues since we changed over to Happy Camper.
 

DLC

Well-Known Member
Joined
Jan 18, 2013
Messages
9,862
Reaction score
14,364
Try not crapping in the sink!

actually grey water stinks more than the black does

try this or Google it. Replace your air admittance valve with a studor valve /vent


99B3B7FD-0634-4075-A60F-40D8614A7BF2.jpeg
 

LazyLavey

Well-Known Member
Joined
Jan 20, 2017
Messages
5,997
Reaction score
9,609
try this or Google it. Replace your air admittance valve with a studor valve /vent


View attachment 1070399
Do these work better than the standard black vents?
 
  • Like
Reactions: DLC

DLC

Well-Known Member
Joined
Jan 18, 2013
Messages
9,862
Reaction score
14,364
I think so, I read it on IRV2, so it has to be true!

It’s worth a try less than $20 bucks!
 
Top