grey water waste pipe size

Discussion in 'The Beginner' started by calculad, Jan 28, 2010.

  1. calculad

    calculad

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    I thought that buying the correct pipe to fit my external grey water tap would be a doddle.
    However, I measured the tap to be as near as dammit 1" (25.4mm) in diameter.

    Firstly the two sizes available seem to be 23.5 or 28.5 and they don't say if that is ID or OD.
    I'm assuming that it is just a push fit.

    Please put this poor idiot out of his misery and advise what size to buy. Having to buy online so can't try out.

    Until last week we had never stayed on a site that had grey water waste disposal on the pitch and a bit of pipe would have been handy.
    Finally a trickier one. What's the optimum length?
    Regards,
    Kev
     
  2. Johns_Cross_Motorhomes

    Johns_Cross_Motorhomes Trader - Motorhome & Accessory Sales

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    Hi Kev,

    Not sure but if you ring my lot, I am sure they will know and if we have some, you can buy over the phone

    Peter
     
  3. petev

    petev Read Only Funster

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    Hi Kev,

    I'm not sure if this is right but I was told when I collected my van from the dealers to look after the flexible grey waste pipe like it is gold as they are extremely difficult to get hold of.

    I hope they were wrong

    Regards

    Pete
     
  4. MikeandCarolyn

    MikeandCarolyn Read Only Funster

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    Go Outdoors had a roll of what looked like Grey waste pipe-I gotta measure mine and buy somemyself.

    Mike
     
  5. Johns_Cross_Motorhomes

    Johns_Cross_Motorhomes Trader - Motorhome & Accessory Sales

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  6. madbluemad

    madbluemad

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    Those dimensions do not comply with any specification that I am aware of. Unless theres one hiding under the table.

    Can you send the guy a 25mm off cut of each size so that he can try them and then when he knows what size to buy charge for the extra 75mm. Bit of a liberty I know.:Blush:

    Jim
    :Smile:
     
  7. zaskar

    zaskar Funster

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    You want the 28.5mm stuff................BUT, make sure you ask for the black rubber grommet that plugs onto the end of the pipe. It is this that makes the pipe fit properly and seals it to the outlet.:Smile:
     
  8. Autoquest

    Autoquest Read Only Funster

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    Yep - It's the rubbery thing that you need, that and loads of PTFE tape.
     
  9. crag

    crag Read Only Funster

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    My waste pipe was 1" (25.4mm) dia. and like the OP I had trouble getting the right size online.
    I got some from Jacksons of Arley as it's not that far away but they do mail order. Give them a call.
     
  10. calculad

    calculad

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    Thanks Crag,
    Just checked. As you say, nothing 1" online.
    Will try phone tomorrow.
    Regards,
    K
     
  11. crag

    crag Read Only Funster

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  12. Johns_Cross_Motorhomes

    Johns_Cross_Motorhomes Trader - Motorhome & Accessory Sales

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  13. gogocrosby

    gogocrosby Read Only Funster

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    A good source of flexible and rigid pipe in a variety of diameters are aquarist ( outdoor aquarium) centres. I've bought pipe and gate valves for two of my vans from them.
     
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