Grey Water Tap Open While Driving Cure ?

Discussion in 'Motorhome Chat' started by Andi968, Jun 27, 2015.

  1. Andi968

    Andi968

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    image1 (2).jpg FullSizeRender.jpg image1.jpg image1 (2).jpg A few weeks ago I read in the forum about people who drive off with their grey waste tanks open and leaving it everywhere. Most of the comments made me chuckle as I have to admit that sometimes I am also a culprit and endulge in leaving a trail behind me like a snail!
    Being the soul I am I set about developing a solution which turned out to be easier than first imagined, a quick inspection of the waste tank and I discovered the waste pipe is connected by a 1"bsp tank connector and not moulded on like some. So off I set to our local plumb centre and purchased a 12v motorized turn valve which has 1/2" bsp thread and a adaptor bush total a couple of coppers short of £20. Then called off at a motor factor and bought a universal up/down window switch for £1.74
    When I got home I set about fitting the valve and cobbled up a relay I already had and the window switch. I have a 3d printer so printed a cbe plate to fit the switch in.
    Now heres the clever part...the relay is also connected to a ignition live so as soon as the ignition is switched on the relay clicks into gear and and shuts the valve if it is open. In normal use the window switch is used to open and close the valve as required from the comfort of inside.
    Hope you like the idea......It could spell the end of grey waste trails on the roads ? but one thing how many times has a grey waste trail help you find that hard to find campsite ? View attachment 67890 View attachment 67891 FullSizeRender.jpg
     
    Last edited: Jun 27, 2015
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  2. John Laidler

    John Laidler Funster

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    Clever, pictures are upside down I guess unless you are located in Australia. But is the valve waterproof? It will get a lot of spray thrown at from the front wheels.
     
  3. scotjimland

    scotjimland Funster Life Member

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    I think the 1/2 inch valve will block rather easily..
    have you figured out how to back flush it yet ? ;)

    Honest opinion..
    an over complex solution to a problem that doesn't really exist except on forums.
    More to go wrong.. KISS
     
  4. Andi968

    Andi968

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    Yes noticed pictures were inverted once uploaded now uploaded them upside down and they are fine

    The unit is rated IP65 so is ideal
     
    Last edited: Jun 27, 2015
  5. Andi968

    Andi968

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    Yep avoid pouring fat and tea leafs down the sink :)

    The main reason for doing this is lazyness on my side
     
  6. golly

    golly Funster

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    How long before someone thinks of operating the valve to open it while doing 70 on the motorway
     
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  7. scotjimland

    scotjimland Funster Life Member

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    oh please.. don't give them ideas.. :eek: :LOL:
     
  8. Fergus

    Fergus Read Only Funster

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    Hey, your a friendly lot on here so I say don't p*ss on this guys parade, or maybe more appropriate don't pour grey waste on his parade. Looks like a nice set up and I bet he had lots of fun and the wife probably even thought he was 'working' so he got some peace and man time as well. Maybe even a well done from the wife at the end, probably with that hint of indifference.
     
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  9. scotjimland

    scotjimland Funster Life Member

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    no one is pissing on anyone.. I gave an honest opinion..

    we are a friendly bunch .. why don't you become a full member.. .. :)
     
  10. Andi968

    Andi968

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    If you take time to read the post you will see that the relay is wired to a ignition live which closes the valve if open.
    With the set as described the only Way to open the valve at 70 or at any other speed is to turn off the ignition get out of the driver or passenger seat go to the control panel and operate the switch
    ! Pretty silly thing to do at any speed
     
  11. Andi968

    Andi968

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    Just a thought here.....
    The next time you are all away and on leaving you go to disposal point and its persisting it down with rain (British summer) you have to get out of the van (or ask her in doors to) open the tap and wait for it to empty in the pouring rain I am sure most of you will think "Hmmm not such a bad idea after all"
     
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  12. golly

    golly Funster

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    Not if you wire it up differently :whistle::D
     
  13. mickyc

    mickyc Read Only Funster

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    Never a problem if you always leave it open :giggler:
     
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  14. Taran_Las

    Taran_Las Funster

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    Cool!(y)
    But in this day and age the control really should be wireless.;)
     
  15. golly

    golly Funster

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    I'm not saying its a bad idea, in fact its a good idea, just a bit of banter (y)
     
  16. Andi968

    Andi968

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    And if you wire your indicators upto your brake lights they wouldn't work as intended either ;-)
     
  17. Andi968

    Andi968

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    I was going to use a wireless key fob with latching relays but things tend to get mis placed so went for hard wiring instead.
    If I was to make any improvements the next stage would be arduino control but the van has more electronics in than the shuttle already.
     
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  18. scotjimland

    scotjimland Funster Life Member

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    If you don't get out and look, how will you know it's actually dumping and if it is actually finished emptying ?

    There are very few drive over dump points in the UK. .most need a dump hose.. even on French aires, many don't have a drive-over drain..

    As I said.. I just see it as another thing to go wrong.. and don't see any real benefit.. but if it's what you want.. (y)

    but I bet you will soon be having it off to unblock it.. and maybe forget to put it back on.. ;)
     
  19. Andi968

    Andi968

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    Just a quick question for everyone. I have a British assembled autotrail tribute T725 and the taps are both on the offside. I just wondered about other makes and position.
     
  20. TheBig1

    TheBig1 Funster Life Member

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