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?
Stump, not sure about your coach but there should be a vent trap in your line. Probably in a cabnit somewhere. Anitvacuum valve
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
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 .
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".
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.
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.
First check and replace vent one way valve on top of vent under bathroom sink
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!
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
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..