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Old 07-06-2013, 05:31 AM   #1
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Question Bad smell in bedroom, not bathroom

Posted this on another forum, but only got one reply and we still need some help, please:
Have limited Internet access so will make it quick. Have 2013 Sunseeker 3170. Been camping for a week. Past three nights, getting horrible smell in bedroom. No bad smell in bathroom itself. Smells whether using bathroom fan or not. Much worse after someone flushes the toilet.
Can't find a leak. We are not on even ground. Never had this before but only weekend trips before. Help?
--DW
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Old 07-06-2013, 07:01 AM   #2
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A few thoughts, I use to have same model: are you leaving your grey tanks open, do you have a high speed vent fan in the bedroom, and have you checked the vacuum break under the sink and tunnel between the bedroom and bathroom?
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Old 07-06-2013, 07:04 AM   #3
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I'm not a guru, but this sounds like a vent issue, most campers have one roof vent for plumbing, along with a "pop off" or a vent under sinks, looks like... Ah...hard to describe, maybe a black steam whistle ? Any way I would check the roof vent, if it is clogged, or otherwise obstruct , it may cause the venting to take place in camper, which by the way if it is from black tank, probably contains some methane,and may be dangerous !
Just an opinion, don't freak out ! The roof vent is where I would start.
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Old 07-06-2013, 07:32 AM   #4
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Quote:
Originally Posted by mwebber78 View Post
A few thoughts, I use to have same model: are you leaving your grey tanks open, do you have a high speed vent fan in the bedroom, and have you checked the vacuum break under the sink and tunnel between the bedroom and bathroom?
Thanks for the replies.
Don't know what you mean about leaving grey tank open
No fan in bedroom; just the max air cover, which we are leaving open.
Don't know what a vacuum break is no where it may be.
And what's the tunnel you speak of?
This unit is new to us, so have little knowledge/experience, plus limited Internet so can't do much online searching.
Thanks
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Old 07-06-2013, 07:49 AM   #5
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This is what I've tried so far:
Not hooked up to sewer. The valve is closed.
Filled all sinks with some water, plus the tub and let drain.
Found the vent piece under the bathroom sink. I took it off and put it back on. Can't tell if there's anything wrong with it but p-ew, it certainly reproduced the bedroom smell in the bathroom.
Edited to note that we know not to have the fan in the bathroom running when we flush. And that should I find the vent on the roof, I won't know how to check it to see if it's obstructed. That said, I'm doing it shortly.
Anything else? We are keeping the bedroom window open for now. But when I did that last night, we got swarmed by a ton of flying bugs that somehow got in. That was fun.
Keep your ideas coming, please!
--DW
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Old 07-06-2013, 08:18 AM   #6
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Keeping your grey tank valve open to your sewer line is a common practice among RVers but can produce the sewer gas return your smelling. The tunnel is under your bathroom vanity, it's a wire and plumbing run open from your bathroom all the way to the right side of your bed and under your bed - it could be the route the your odor is traveling. If the vacuum breaker under your sink doesn't smell when your nose is at it while using your kitchen sink or bathroom sink then its not the issue. Just to note, your roof stack vents are right near your bathroom and bedroom fresh air roof vents.

Have you used the black tank flusher to truly clean your tank? Also, in heat your grey tank can have food residue and smell as bad or worse! They sell citric based grey tank cleaners and deodorizers.
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Old 07-06-2013, 09:26 AM   #7
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I am truly disappointed! Not one of you gave this poor man any grief! My first thought was that he may have consumed a methane producing meal prior to turning in for the night! Ok, I'll be the SA!
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Old 07-06-2013, 09:36 AM   #8
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Grey tank drains have p traps to stop odors from escaping. I would suspect that maybe the roof vent pipe may have fallen down in the tank preventing it to vent properly. Take the vent cap off, get a tape measure and measure down the pipe to the bottom of the tank and then hook the tank end of the pipe and read the difference. If it is less than 2"-3" your pipe needs to be raised.
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Old 07-06-2013, 05:14 PM   #9
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Are you using chemicals in the tanks to control order??
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Old 07-06-2013, 05:33 PM   #10
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With my 3170 had a bad smell one time. The deodorizing chemical had been in a while and had lost their effectiveness. Went camping and in an inclosed camper ( air conditioning running) took a shower with the vent fan running. Nature called and upon flushing, WOW. Added more chemical, and yes, I flush tanks thoroughly. DW was in bed room and wanted to know who died. Only time that is happened. Apparently, the 3170 is tight and the fan just pulled air from the vent stack, into the black tank and into the coach.
Just relaying an experience with my 3170. Hope this helps.
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