Funny how my mind works sometimes !

Discussion in 'Motorhome Chat' started by knokinonabit, Jan 26, 2016.

  1. knokinonabit

    knokinonabit Funster

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    I was sat on the toilet at home the other day and my mind started to wander, as it often does.
    The question I was asking myself was, on a MH/RV with a black water tank fitted what stops the smell coming back from the tank into the vehicle ?

    At home there is the U bend with water in it that acts as a trap preventing smells from coming from the waste pipe.
    On a MH fitted with a cassette toilet there is the Sliding valve thingy.

    This may be obvious to many people, but not to me.
    Please help put my troubled mind at rest. :notworthy2:
     
  2. GJH

    GJH Funster Life Member

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    Oh that's easy. The rich and privileged people who can afford vans with black tanks have DNA which only passes sweetly scented pooh :rofl::rofl:
     
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  3. John Laidler

    John Laidler Funster

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    You need a holiday if this is troubling you! :)
     
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  4. knokinonabit

    knokinonabit Funster

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    How can I go on holiday with my mind in turmoil ?
     
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  5. GJH

    GJH Funster Life Member

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    Just keep telling yourself "Anywhere is better than Stowsla" :LOL:
     
  6. canopus

    canopus Funster Life Member

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    Those in RV's sh1t violets don't you know :rofl:
     
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  7. thehutchies

    thehutchies Funster

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    A sliding valve thingy and a breather pipe for the black tank that exits on the roof.
    The kids say that is how Father Christmas gets in. :)
     
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  8. John Laidler

    John Laidler Funster

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    Do we really want to know? Isn't it better some things remain a mystery, otherwise what have future generations got to look forward to discovering?

    And no, I am not sitting on the Throne to dream up that bit of philosophy. Perhaps I should be? * :)


    *Answers NOT required!
     
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  9. knokinonabit

    knokinonabit Funster

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    Except Acklam and surrounding areas that is. :rofl: :wink:
     
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  10. canopus

    canopus Funster Life Member

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    And perhaps certain parts of Lackenby :rofl:
     
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  11. knokinonabit

    knokinonabit Funster

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    Which offers wonderful views of the declining steel and chemical industries. :(
     
  12. canopus

    canopus Funster Life Member

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    And the 275/132kV substation from whence I knew it from - Beirut springs to mind
     
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  13. DavidG58

    DavidG58 Funster

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    To return to original question, we have a black tank with a macerator (just to make it even more thought provoking), the macerator forms a restriction above which we retain the equivalent of a U bend full of water

    Our problem is however still real, despite being told by many of the wise ones on here that mine must vent to the roof area, in my early days I felt obliged to believe them all but still couldn't find a vent, now know they were wrong all along o_O and mine does vent down to the floor, which in turn leads to whiffs back inside :(
     
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  14. gus-lopez

    gus-lopez Funster

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    Mine is a marine toilet & it has only the rubber seal on the slid valve to prevent smells returning.This is aided by water laying above the slide valve once flushed.
    There is no vent pipe-
     
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  15. GJH

    GJH Funster Life Member

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    Oh, so it was you who spoilt it was it? :LOL:
     
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  16. Dorwyn

    Dorwyn Funster

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    I always thought they were the ones that make such a smelly mess of the waste dump
     
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