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Topic: Funky Poo Smell (Read 736 times) previous topic - next topic

Funky Poo Smell

Ok I have some Funky Poo going on on my 91 GV windows closed ,bath ceiling vent closed . kool a matic running on low, gawd awful black tank stench inside coach,turned off kool a matic,opened up bath vent,no fan,gawd awful poo smell gone, I see the vent pipe exiting the roof ,Is there another vent hidden in a cabinet? Or maby my vent pipe is detached from poo tank? I don't know, but this is rank on a hot summer day. Toilet slide valve dosnt leak holds water no problem there has to be a opening somewhere that when a vacuum is on the coach the poo slips thru! any help for this?
91 GV U300 Unihome 40' Build 3811
6V92TA Detroit

Re: Funky Poo Smell

Reply #1 –
Stump, not sure about your coach but there should be a vent trap in your line. Probably in a cabnit somewhere. Anitvacuum valve
Richard & Betty Bark & Keiko our Golden Doodle
2003 U320T 3820 PBDS
Build # 6215
MC # 16926
2016 Chevrolet Colorado 4X4 diesel

Re: Funky Poo Smell

Reply #2 –
Stump,
  I have some plumbing vent valves on my coach. They look like this and are under the sinks and in the closet behind a cedar panel. You may have some as well. They keep the air from going into the coach.

Mark
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Mark and Tanya
Milton , Florida
US Navy Veteran (DV)
1999 U270 Special 40' CAI , 2015 Jeep Wrangler Sahara

Re: Funky Poo Smell

Reply #3 –
If you just recently drove it, you may have lost the water (seal) in your drains.
Howard & Rose
92 U225 GV - 36'  - Build # 3989
2003 Honda Civic
95 Jeep Wrangler
2018 Winnebago Travato 59K
4 Chihuahuas

Re: Funky Poo Smell

Reply #4 –
Quote from: hjrein –
If you just recently drove it, you may have lost the water (seal) in your drains.

I did drive it home today after using it this weekend but dosn't the sink water go to the grey tank? this is so bad a smell it has to be from the black tank,and it really is intense in the bathroom.I don't smell it with just the bathroom fan on but turn on thr kool a matic in the kitchen and woo hoo. Ill delve in behind the cabinets there must be a vent pipe or whatever hidden .
91 GV U300 Unihome 40' Build 3811
6V92TA Detroit

Re: Funky Poo Smell

Reply #5 –
Quote from: MAZ –
  I have some plumbing vent valves on my coach. They look like this and are under the sinks and in the closet behind a cedar panel.

AKA air admittance valves.  Typically there is one per fixture, so kitchen sink, bath sink, shower, washer (if present), toilet. 

When one fails, you get what's sometimes termed "stinky coach syndrome".
Learn every day, but especially from the experiences of others. It's cheaper!  - John C. Bogle

2000 U320 36' non-slide / WildEBeest Rescue
2003 U320

Re: Funky Poo Smell

Reply #6 –
Check your toilet seal.  If the toilet won't hold water above the ball valve after a flush, it will admit smells into the coach--- really funky smells!  You can remedy this by applying some silicon grease to the seal on the ball (flush ) valve.  The water makes an excellent smell seal.
Current coach 1996 U320 40'
Previous coach, 1990 36' U280

Re: Funky Poo Smell

Reply #7 –
Stump,  are you saying that you run your kool o matic vent fan to blow air out without opening a window to let air in.  Very bad idea to run any exhaust fan without allowing outside air back in.  Otherwise the vacuum caused by the exhaust fan will allow replacement air from undesirable places, like your toilet, gray tank sink traps, dirty air from behind fridge, basement, etc.
We run a muffin fan mounted on black tank roof vent to put a light vacuum inside black tank, with the hope that flushing the toilet moves air up the roof stack, instead of the other way around and into the bathroom.

Re: Funky Poo Smell

Reply #8 –
First check and replace vent one way valve on top of vent under bathroom sink
Tim Fiedler    2025 LTV Unity MBL on Order
2000 Chevy Tracker 2 Door Convertible 4WD Now lifted 4.5"
1985 Citroen 2CV6 Charleston
Murphy Rebel on wheels with 175HP Titan
Cessna P337
1980 48' Westport MY (!/4 Share)

Re: Funky Poo Smell

Reply #9 –
Just for the heck of it, check the black tank level---- the audit system may be lying about the level.  If it is full or near full the smell ratio goes way up!
Current coach 1996 U320 40'
Previous coach, 1990 36' U280

Re: Funky Poo Smell

Reply #10 –
I agree that it's likely an air admittance valve. One point though: the smell coming from the gray tank is as bad or worse than that of the black tank so don't dismiss it as the source. Good luck.
jor
93 225
95 300
97 270
99 320

Re: Funky Poo Smell

Reply #11 –
Quote from: jor –
I agree that it's likely an air admittance valve. One point though: the smell coming from the gray tank is as bad or worse than that of the black tank so don't dismiss it as the source. Good luck.
jor
Very true.  Nothing like grease and food particles from doing dishes digesting in the grey tank.  Reason I use alot of Dawn detergent in the tank as well as a bit of black tank chemicals.

I also learned to turn off the circuit breaker for the Splendide when hooking up & unhooking the electrical.  It seems the electrical board in the Splendide got fried once when I hooked up the electrical during my early days of the school of hard knocks with Forrest.  He is now very well manered... ;D
Peter & Beth Martin
No Forrest? What have you done?
MC# 15890 until Dec 2016; FMCA #F329677
Cincinnati, OH

Re: Funky Poo Smell

Reply #12 –
Well I found the Funky Poo Doo Smell source.  The toilet started leaking water through the slide flap. I got a full seal kit and when I got in today from work I pulled toilet out to replace all the seals,Well the flange on the base was broken so only one hold down bolt was holding the toilet down. Someone at sometime had tried to glue it back but it didn't work.the seal ring was halfway on the flange,I think 24 yrs of funky poo poo was built up around everything, A trip to  the Lowes plumbing section for a repair collar made of steel,and a little Carolina engineering and that should work just fine now. I took out all the nasty old carpet that was under the poopah and now have a nice plywood box and floor in the bathroom. Tomorrow I'll button up the toilet flange rebuild and finish putting together the rebuilt throne. put it all back in working order. New floor is plabned for this winter so cheap throw rugs will do till then..
91 GV U300 Unihome 40' Build 3811
6V92TA Detroit