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Pineapple_Kid's avatar
Feb 22, 2014

A long Stinky Toilet story

A long Stinky Toilet story

This last year I spent a lot of time in my fifth wheel. While it was parked at my Daughters house in The Santa Cruz California area which has cool weather and all was OK, The toilet odor would start after a week or so and I would just drain and clean out the tank, I was not using any chemical because my daughter’s septic system is a special system and I did not want to foul anything up.

I got a break in my schedule with the probate court dealing with my Uncles Estate so I called Eve and flew her over from Hawaii for a couple of weeks R&R in Las Vegas ( at 100 degrees).

At the first rest stop the Tank odor was overwhelming I added some chemical to the tank and got into Vegas . About 3 days later the Odor came back with vengeance. I headed to the RV shop and told them my problem and was told it was most likely the seal leaking where the toilet bolts to the floor, armed with a new seal I returned to the trailer dumped the tank and changed the seal out, re-chemical the tank and off to the casinos to make my donation. All is well for about 3 more days and the odor is back.

I head back to the RV shop and I buy a new toilet and another rubber floor seal and go back to the trailer and install it, re-chemical the tank and guess what happened in 3 days? Yes the odor is back.

There is not much I can do in a Casino RV Park so I just dump and flush the tank every 3 days until I get back to my Daughters, get Eve on an airplane back to Hawaii and then attack the tank ( I wrongly figured it has to be a plugged vent ) I go up on the roof and remove the vent cover and the 1 ½ “ ABS vent pipe jumped up in the air about 3 “, I try to push it back down but it won’t move, after a whole bunch of nasty adjectives directed at Jayco I crawled under the trailer and of course I can see nothing but tank bottom . It does not look like dropping the tank is going to be a fun job so I stand back and think the situation over.
The Jayco bath room has one wall with a angled end on it about 11” wide and I say ah-ha that has to be where the vent pipe is, I get my handy Harbor Freight multi tool out and cut a 8” by 8” hole in it (after removing the toilet ) and there is the vent pipe end sitting on top of the floor joist with the 1 ½ tank coupling about 2” away.
I am growling to myself that the Jayco buggers never cemented it in place then I realize the tank could not be removed if it was cemented in so what was my answer to the problem?
I could get the pipe into the coupling by bending it at an angle and forcing it in but how to keep it there?
I forced the pipe into the coupling and then filled the wall cavity with a can of spray foam, I went up on the roof and drilled a hole in the ABS Pipe where it came through the roof and put a screw through it so it is now held in place at the top and the bottom, I trimmed the excessive foam off glued the piece I cut out back in place with some molding strips and re installed the toilet.
The next 2 months I stayed in the trailer it was odor free ( except for my dirty socks ) Hope this story helps someone out with a similar problem ( not the socks)
Aloha From Kauai Leon
  • The top of the tank coupler was 1/1/2" ABS, the vent pipe is 1 1/2" ABS
    can't see how it was attached to the tank or what it looked like.

    The coupler in the tank was out of line with the vent pipe by about 2"

    The vent pipe had to be forced over to get it in the coupler, I wish I had cut some off and used a couple 45 degree ells, if it pops out again that is what I will do.
    Someone at Jayco put the coupler in the wrong place ( or the vent stack )
    I don't believe the pipe can go anywhere now as the whole cavity is filled with foam.

    Working on the sock problem ( don't have to wear the dang things here in Hawaii)

    Aloha Leon
  • This is the type of grommet used to connect vent pipe and drain line (from toilet or sinks) to the top of waste tanks.......



    Your vent pipe was binding because of improper installation. When you removed the vent cap the stress on vent pipe was relieved, unfortunately the other end of pipe jumped out of the tank grommet.

    Hopefully you were able to get it back into the grommet.

    When you used the screw up at roof line......did you have to push down vent line to position it OR was the stress off of pipe?

    I would check it again in couple months after some time traveling to see how it is holding up.
  • Leon,

    Congratulations on a great and direct diagnosis. While I am sure you identified the problem, your fix may have a little tiny problem.

    Was the tank coupling rubber? Most RVs of that period (and still) connected the vents with a tall rubber grommet. The reason the vent stack pulled out was just the coach flexing. It still is flexing, but you don't know what is happening down at the tank....

    So, I will suggest that if it does have a tall rubber grommet at the tank, use the buzzy tool to clear away the foam and put a hose clamp on there. Then, go back on top and take your screw out. This will will allow the vent stack to float in the roof and it won't pull out of the tank.

    I have come across a lot of this sort of thing since the depression killed my boat work business. It takes a lot of talking to get an owner to let you make holes in the coach walls.

    Matt
  • It won't do any good but, I would complain to Jayco. And, there is a slim, quite slim, chance they might fix the problem on new trailers so that it doesn't happen to other people.
  • Thanx for the story. Need to put this lesson in my memory bank for quick recall down the road.
  • What you had was sewer gas. You should be happy you got it repaired. A fair number of people and animals have died from the gases found in livestock contained manure storage systems.
  • The important thing is, you found the problem and got it fixed.

    I'm sure you will get several opinions on how you should have made the repair, screws, rubber couplers, etc..

    Now, if you can do something about the dirty sock smell, you will be good to go. :B

    Enjoy your travels.
  • To the "Pineapple Kid":

    I am glad you fixed your're problem..... really, I am. That sounded like a bummer, BUT, your words somehow did not explain to me the FIX!

    The smell was getting to inside trailer at "vent pipe connection" at tank, inside wall, behind toilet, and below floor?

    Maybe someone else will give us an input. I'm 75 yrs old and my my mind is not as quick.
    Opps..., after posting, re-read story. The "COUPLING" was "none existing", pipe popped out of tank connection. Okay.... get it.
    Famous line from movie "Cool Hand Luke". "Gotta get my mind right Boss."

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