Grey water emptying

Discussion in 'Motorhome Chat' started by Huwmari, Nov 22, 2014.

  1. Huwmari

    Huwmari Funster

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    Simple enough one would have thought and indeed it was on our previous van - open the tap over the grid and hey presto. However, in our present van we have a problem: the grey tank won't start emptying until it's full. Sounds crazy I know but has anyone else had the same problem or have any idea what we can do about it? Help please.(n)
     
  2. Jaws

    Jaws Funster Life Member

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    Question.. Once it is full, does it empty completely ?
     
  3. Popeye

    Popeye Funster

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    Do you know why it won't empty until it's full or are you asking if that is the case?
     
  4. Huwmari

    Huwmari Funster

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    Yes it does.
     
  5. Huwmari

    Huwmari Funster

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    Hi, I'm asking why it won't empty unless it's full. Nothing will come out until the relevant warning light shows on the control panel telling us the grey tank is full.
     
  6. Andy

    Andy Funster

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    Does it use a pump to assist emptying ? If so maybe's a micro switch type thingy doesn't activate until level is reached..........
     
  7. Jaws

    Jaws Funster Life Member

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    Sounds like it has some weird valve system that will not open until the light comes on. Bit of a daft idea if that is the case !
    Think I would investigate and fit a wee switch to bypass the system
     
  8. kcy

    kcy Funster

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    what type van have you got because our chausson seems to be like that
     
  9. Wildbill

    Wildbill Funster

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  10. hilldweller

    hilldweller Funster Life Member

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    Sounds just like a toilet siphon.

    Very odd.
     
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  11. kcy

    kcy Funster

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    that is so helpful darling:lips:
     
  12. kcy

    kcy Funster

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  13. JJ

    JJ Funster

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    Actually it is not strictly a "grey water emptying" thread but rather, a "grey water TANK emptying thread" ...

    All a matter of finding out why this tank has to be really full before it will start to empty.

    JJ :cool:
     
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  14. GWAYGWAY

    GWAYGWAY Funster

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    Just a way of making sure you are overweight when the plod stop you and you cannot dump the evidence over his feet.
     
  15. DuxDeluxe

    DuxDeluxe Funster Life Member

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    Very strange...... Most grey tanks simply have an outlet at the bottom to dump it all over your feet when you turn the valve handle.
     
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  16. john kyte

    john kyte Read Only Funster

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    My tank is home made and just has a removeable cork in the bottom.When cork is removed the tank empties quickly and completely
     
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  17. davejen

    davejen Funster

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    Just fill the tank via the tap, then empty grey tank and re-fill the fresh water at the same time.....Simples!
    Cheers, Dave(y)
     
  18. Huwmari

    Huwmari Funster

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    We have a 2004 IH Savannah Tio.
     
  19. Huwmari

    Huwmari Funster

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    Hi Dave, we have been doing this but it wastes a lot of water and sometimes we want to empty the grey tank before it gets full up.
     
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  20. DavidG58

    DavidG58 Funster

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    sounds bonkers, have to think something is wrong or over engineered, which still equates to wrong

    we use our grey waste to flush out black tank pipes, would be a nuisance for us

    must be a way round it, hopefully
     
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