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Stinking toilet

I'm having black water coming up through the fresh water inlet. Any one ever had this problem and what is the cure.
Peter and Frieda Morin
1999 36ft. U320 Foretravel
Build # 5436
1998 Suzuki Sidekick Sport

Re: Stinking toilet

Reply #1
Is this black water (as in sewage) or is it black but "not smelly" from degraded hose gasket, etc?
Brett Wolfe
EX: 1993 U240
Moderator, ForeForum 2001-
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Chairman FMCA Technical Advisory Committee 2011-2020

Re: Stinking toilet

Reply #2
It is black water and it stinks. It only happens when driving with the tank over half full and it happen on sharp curves or hard stopping.
Peter and Frieda Morin
1999 36ft. U320 Foretravel
Build # 5436
1998 Suzuki Sidekick Sport

Re: Stinking toilet

Reply #3
What are you calling the fresh water inlet? You don't mean gray water drains do you?
1999 40 ft. U-320 wtfe build 5563 Chuck & Lynda's "Rollin' Inn"  2030 watts solar
prev. mh's 71 GMC 5 yrs. 73 Pace Setter 1 yr. 78 Vogue 5 yrs 81 FTX 40ft all electric 18 yrs. 1996 Monaco Signature 3 yrs.
2014 Grand Cherokee Overland
Dream as if you will live forever. Live as if you will die today.  James Dean

Re: Stinking toilet

Reply #4
Is your toilet directly over the black tank (Drop & Plop) or is it offset some distance from the black tank (TurboTurd 3000)?

If the latter, see below for a recent discussion of the TT-3000;

Magnuum Opus 3000
1993 U280 SE 40' WTBI, Build: 4359
C8.3 300hp, 6-Speed, Exhaust Brake
960 watts on the roof (6 x 160)
Sorento (or BOLT) on a Kar Kaddy SS
"Nature abhors a vacuum"

Re: Stinking toilet

Reply #5
It's a manual toilet and the black water is coming out where the fresh water comes out comes out when flushing or when you
pull the flush lever up for fresh water to come in the toilet.
Peter and Frieda Morin
1999 36ft. U320 Foretravel
Build # 5436
1998 Suzuki Sidekick Sport

Re: Stinking toilet

Reply #6
It's a manual toilet and the black water is coming out where the fresh water comes out comes out when flushing or when you
pull the flush lever up for fresh water to come in the toilet.

Since you mention the problem when the black tank is "fairly full" and going around sharp turns, It sounds like this is while driving and you aren't referring to flushing the tank and having sewage come out instead of water.  Is that what you are describing?

Is it possible the tank level is reading low for what you actually have and it's the black tank contents sloshing back up?  Have you checked the condition of the flapper/seal that closes to prevent black tank contents from sloshing up? 

Which tank level sensor system do you have?  If a Javalina, there is a somewhat involved process to calibrate the sensors - you must do all 3 at the same time, and you must both empty ALL tanks and fill ALL tanks to do the calibration.


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: Stinking toilet

Reply #7
I will have to pull the toilet apart and see how the black water gets up there. After it happens when I flush crap comes out with the fresh water.
Peter and Frieda Morin
1999 36ft. U320 Foretravel
Build # 5436
1998 Suzuki Sidekick Sport

Re: Stinking toilet

Reply #8
That is truly a crappy problem to have!
1996 U295-36, Cummins 300hp, 8.3. Build number 4864. Vin number 1F97D536XTNO54271. Purchased October 31, 2019.

Re: Stinking toilet

Reply #9
Black tank venting issue?
Bruce, Linda, and Macy
Zoey RIP 1/20/19
1999 U295 40' build #5400
2017 silver Jeep Wrangler, 1260 watts of solar on top
Moving around the country

Re: Stinking toilet

Reply #10
I don't think so Bruce as normally no smell.
Peter and Frieda Morin
1999 36ft. U320 Foretravel
Build # 5436
1998 Suzuki Sidekick Sport

Re: Stinking toilet

Reply #11
I don't think so Bruce as normally no smell.
oldguy, if you had a Thetford Aquamatic IV I could tell you with some certainty that there is a fresh water flush line to the blade chamber.
1992 Foretravel Grand Villa
U225 SBID Build No. 4134
1986 Rockwood Driftwood
1968 S.I.A.T.A. Spring
1962 Studebaker Lark
1986 Honda VF700C
1983 Honda VF750C
Charlie, the Dog was broken out of jail 24 Oct 2023
N1RPN
AA1OH (H)e who must be obeyed.

Re: Stinking toilet

Reply #12
It's a Sealand Traveler 511. I will take it apart and see it I can figger out what is the mater.
Peter and Frieda Morin
1999 36ft. U320 Foretravel
Build # 5436
1998 Suzuki Sidekick Sport

Re: Stinking toilet

Reply #13
It's a Sealand Traveler 511. I will take it apart and see it I can figger out what is the mater.
Please report back with what you figger out.  I have had my Sealand Traveler 511 totally apart several times for various repairs and I cannot imagine how black water could be diverted into the fresh water fill. 

Richard
Jan & Richard Witt
1999 U-320  36ft WTFE
Build Number: 5478 Motorcade: 16599
2011 Jeep Wrangler Unlimited w/Air Force One
Jan: NO5U, Richard:KA5RIW
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Re: Stinking toilet

Reply #14
Neither can I and I have had them apart. Will let you know.
Peter and Frieda Morin
1999 36ft. U320 Foretravel
Build # 5436
1998 Suzuki Sidekick Sport

Re: Stinking toilet

Reply #15
The sewage tanks black and gray are seperate tanks frlm fresh water.  There is no way sewer water is being fed to toilet unless you filled fresh water tank with nasty.  Flush fresh water tank and see what comes out of it.
91 GV U300 Unihome 40' Build 3811
6V92TA Detroit

Re: Stinking toilet

Reply #16
Fresh water tank can go sour.  Rare. 
"Riding and rejoicing"
Bob
1997 U320 40' Mid entry, build 5132,  wtbi ce27, 4th owner
2007 Solara convertible
2 prodeco tech outlaw ss electric bikes

1095 watts solar
08 Ls 460 and a sc430
2000 Ford F-250 superduty 4x4

Re: Stinking toilet

Reply #17
Fresh water tank can go sour.  Rare. 
Or they filled on someone funky well. Drain fresh tank and sanitize drain again.maybe even again.
91 GV U300 Unihome 40' Build 3811
6V92TA Detroit

Re: Stinking toilet

Reply #18
Fresh water is fine. I will pull the toilet in the next couple of days.
Peter and Frieda Morin
1999 36ft. U320 Foretravel
Build # 5436
1998 Suzuki Sidekick Sport

Re: Stinking toilet

Reply #19
Check studer vents first might have ome leaking
91 GV U300 Unihome 40' Build 3811
6V92TA Detroit

Re: Stinking toilet

Reply #20
First Sealand Traveler 511 had two visible overflow drain holes in the upper rear of the ceramic bowl.

These holes are designed to bypass the foot pedal valve, with small water traps, to prevent running water to not overflow the top of the ceramic bowl.

To work the rubber gaskets need drain holes and the base needs to have a clear drain path.

Many things will allow smells and or black water to flow up and out these two holes.

Is your black water flowing out from these two round overflow holes?

Later versions of the same ceramic bowl model eliminated the holes, increased height and changed vacuum break and rubber gasket design and part numbers.

Barry

Re: Stinking toilet

Reply #21
Just a thought before you tear your coach apart.  Is it possible that the PO plumbed in a grey water toilet feed?  If so, gray water can smell very swampy...unless you are sure you are actually seeing black water in the toilet flush water that is.  Woody.
2001 4010 U320 build #5865 "Bluto-d-Bus" since 09/18
2006 Honda Element ESP Toad
Full timing since 2016 in Western MT
Copilot: Sitka
1975 GMC 260 Avion: sold

Re: Stinking toilet

Reply #22
I had a conversation with the Sealand customer service person re our #510 toilet and the two drain holes. She said that Sealand now furnishes plugs to plug the holes. Reason given? The 510 and 511 series are manually operated so filling to an overflow condition was extremely unlikely and more likely to be "operator" error.
I got the plugs, put them in (about five years ago) and no problems since.
Nitehawk,  Demolition Lady, & our NEW master, Zippy the speeding BB cat.
1989 Grand Villa 36' ORED
Oshkosh chassis, 8.2 DD V8
2006 Saturn Vue AWD

Re: Stinking toilet

Reply #23
The bottom line within the design of toilet their is NO WAY, black water is coming through the flush water supply as that comes through the fresh water feed. Black water no pressure supply therefore no way to run uphill, Sir Isaac Newton says do. Gravity it's not a rule it's the law.

Now if the PO plumed a gray water flush some how???? But that going to require a whole other pressure system pump and all.
Not to say you don't have a problem, but their ain't no way BLACK water is running up hill from the bottom of the black tank.
Bruce, Linda, and Macy
Zoey RIP 1/20/19
1999 U295 40' build #5400
2017 silver Jeep Wrangler, 1260 watts of solar on top
Moving around the country

Re: Stinking toilet

Reply #24
Water won't run up hill but it can be pushed, like in the Bay of Fundy which has 56 ft tides. I got my toilet out today and I think I have two problems. One is the black water is being push up through the seal and out the two holes in the toilet by the sloshing in the tank going around corners. The second is as Wolfe
said something is degrading in the fresh water supply. I have had that problem since I got the rig and it doesn't smell. It would happen periodically. I will check and see what is causing that. As soon as my son
comes over I will send a picture of the first problem.
Peter and Frieda Morin
1999 36ft. U320 Foretravel
Build # 5436
1998 Suzuki Sidekick Sport