Fitting a SOG unit (type B). Can I remove the existing vent?

Discussion in 'Tech/Mech General' started by Biggerthanbefore, Jan 17, 2016.

  1. Biggerthanbefore

    Biggerthanbefore Read Only Funster

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    Hi folks

    As in the title I have purchased a SOG unit for my Niesmann Bischoff Arto 69E.
    My question is: I have a small vent already in the cassette compartment door which has a pipe attached which I presume is an air vent already which links to the cassette pressure vent. The toilet is a Thetford c200 with electric flush which I believe is fed from the main tank.

    I wondered if I would be able to do away with the existing vent and block up the hole in the door and use the SOG cover to hide the filled hole.
    The blade opening mechanisim within the toilet compartment (the bit you cut off in the SOG instructions) has the rubber seal but my cassette has the non matching pressure relief valve which has me confused somewhat.



    Thoughts anyone please?

    Thanks

    Bodge
     
  2. Lenny HB

    Lenny HB Funster

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    Sounds like you already have a SOG fitted.
     
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  3. Don Quixote

    Don Quixote Funster

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    Yep I agree sounds like Niesmann Bischoff own SOG..... never mind you can send it back or sell it on here(y)
     
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  4. Biggerthanbefore

    Biggerthanbefore Read Only Funster

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    Hi Lenny
    The fitted vent is only small and no fan. It has a stainless steel shroud on the outside of the toilet casstte compartment door probably big enough to shove your thumb up. I think it links via a pipe to the rubber seal above the pressure relief valve on the cassette to vent the cassette when pressure builds up.

    Thanks
     
  5. DavidG58

    DavidG58 Funster

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    I can't see N + B giving him any credit for a used SOG :LOL::LOL:
     
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  6. Lenny HB

    Lenny HB Funster

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    Can you post some photos, maybe a diy excuse for a SOG.
     
  7. peterc10

    peterc10 Funster

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    What toilet is it? The Thetford 250 and 260 has a vent that vents through the floor - opens when you slide the cassette in. As standard it does nothing, but you can buy a fan kit that fits in the floor complete with charcoal filter. Fan comes on with first press of the flush button.
     
  8. ivorantony

    ivorantony Funster

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    I also have the 250 thetford with the fan kit fitted but also fitted an additional fan downstream of the tank fan connected to a PIR,
    every time you enter the loo the PIR switches on some low level LEDs and fan for about 5 mins,
    it works great for those nocturnal visits without disturbing anybody,
     
  9. Lenny HB

    Lenny HB Funster

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    The OP does say it is a C200 which does not have any vents.
     
  10. Biggerthanbefore

    Biggerthanbefore Read Only Funster

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    Yes it is a c-200 cassette. The vent is original but I am going to have a look this week when I get over to my storage place.
    thanks for the answers.
     
  11. Boringfrog

    Boringfrog Funster

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    My Burstner has a C200 with a black vent pipe fitted, I think I left it in situ when fitting the SOG.
     
  12. JeanLuc

    JeanLuc Funster

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    The C200 has an automatic pressure release vent (PRV) in the cassette which you remove and replace with the SOG pipe connector. In my Hymer, there was a black rubber corrugated tube that connected the PRV to the outside: it was vented through the floor, rather than the door. The connection with the PRV was effected by a rectangular rubber grommet. If I recall correctly, I simply left the black pipe in situ and bunged up the open end beneath the floor with a squirt of Sikaflex (probably overkill). I do not remember having to remove the other end of the pipe. So, in your case, I would have thought you can incorporate the existing hole in the door with the new SOG hole for its vent and suction motor.
     
  13. Paul and Jeannette

    Paul and Jeannette Funster

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    We had a SOG fitted to our used motorhome by the suppliers. We had read that you do not need chemicals which seemed a good idea. However on collection the technician said that you still have to use chemicals, which rather defeats having it.
    can anyone give the right answer please.
     
  14. peterc10

    peterc10 Funster

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    OOps missed that .... sorry
     
  15. Lenny HB

    Lenny HB Funster

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    Been using SOG's for 8 years never used any chemicals, link to SOG German site more info than on the UK one.
     
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  16. wanderingyp

    wanderingyp Funster Life Member

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    We've had a SOG for years and never used chemicals, that's why we fitted it so we didn't have to carry chemicals around. We are very pleased with it, no smells at all and all breaks down easy to empty out!
     
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  17. Speve

    Speve Funster

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    We don't use chemicals in ours works well wouldn't be without one.
     
  18. Biggerthanbefore

    Biggerthanbefore Read Only Funster

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    Well, that's the Sog sorted. Here is a couple of photos of what I started with as described earlier in the thread. 20160124_105145.jpg

    The view inside the cassette door shows the black vent pipe. 20160124_105202.jpg
    the black vent pipe travels under the cassette docking area to an external vent. 2016-01-24 10.52.08.jpg
    The external vent. 20160124_105154.jpg

    The previous owner must have replaced the cassette as it has the incorrect vent to match up with the vent on the van (on pic one). 2016-01-24 13.50.14.jpg
    Anyway, 2 hours later I managed to lose the existing vent and hide the hole behind the new SOG vent. All working as it should do. 2016-01-24 13.50.08.jpg
    And the door sticker hides the cheeky hole left by the old vent. ;)
    2016-01-24 13.50.20.jpg
    Discarded parts!!!!
     
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  19. JeanLuc

    JeanLuc Funster

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    Good job, you won't regret fitting a SOG. I suggest you buy spare charcoal filters when you are abroad - they are cheaper in Holland and Germany than in Britain.
     
  20. Biggerthanbefore

    Biggerthanbefore Read Only Funster

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    Where do they sell them in Germany or Holland? Caravan/MH shops?
     
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