waste pipe insulation

Discussion in 'Top Tips & Tricks' started by camocam1, Jan 18, 2015.

  1. camocam1

    camocam1

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    image.jpg Just insulated the waste pipe on my Bailey 760 with 22mm pipe lagging covered in foil insulation any suggestions for lagging the drain tap ???
     
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  2. jonandshell

    jonandshell Funster

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    In my experience you are wasting your time. Without some form of heat applied to the pipe, just leave it open and use a bucket!
     
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  3. musson

    musson Funster

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    Hi if you do want to insulate the tap I think you can get an outside tap insulator from B and Q,wickes
     
  4. BreweryDave

    BreweryDave Funster Life Member

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    Or just go to spain ;)
     
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  5. bungy

    bungy Funster

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    I once asked John Wickersham (author of build your own motorcaravan) what he would recommend on insulating a grey tank and drain pipes
    His answer was simply - unless you plan on heating the tank then all you are doing is slowing the thawing process down...
     
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  6. Speve

    Speve Funster

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    I agree with jonandshell that's the best thing to do
     
  7. camocam1

    camocam1

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    The reason I have lagged it is as follows
    On the Bailey there is some form of baffle at the drain valve which restricts / slows the flow from the waste tank ( plan to take off in the spring and replace) and when I was away in minus 2 even with the drain open and a bucket the waste pipe / drain valve still Froze !!!!
     
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  8. camocam1

    camocam1

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    Pushed the button too early so even given my reasons I do note what has been said by all
    Looked at outside tap covers and they are too large for MHZ
    Spain I wish !!!! Was planning that after the new year but family matters got in the way as usual maybe someday
     
  9. Gromett

    Gromett Funster

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    I would agree, as a full timer I have had the frozen pipe problem a few times now. Insulating without heating will only slow the freezing process, it will also slow the thawing process.

    I designed mine so that I could disconnect the waste pipes where they exit the van before they go into the waste tank. I used straight through connectors. If the weather gets bad I pull these pipes apart and drop them into the waste hog and a bucket. In weather where it freezes overnight but thaws during the day I just leave the waste hog under the tap and leave it open.
     
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  10. jonandshell

    jonandshell Funster

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    Some manufacturers fit some terrible waste discharge solutions.
    I remember our old Elddis had a ridiculous piece of 22mm hose with a tiny tap on the end. It took ages to drain the titchy 45 litre waste tank. I say drain, but it never really did, the exit hosetail wasn't even at the bottom of the tank!
    I'm glad we haven't got it now, it would have frozen solid in no time at all once it got below freezing!

    Our present Chausson has a 2 inch gate valve which dumps the 105 litre tank completely and in no time at all. Because there is no discharge pipe, the slide valve is the only part prone to freezing. It doesn't freeze often unless it is -10 or less due to the tank defrost element being within a couple of inches of it. A quick warming up with a saucepan of boiled water thaws it within a couple of minutes.
     
  11. Techno

    Techno Funster Life Member

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    My Rapido has a much better design in that the waste pipe does not have any water in it until I open the drain tap. No water = no ice (y)
    Bailey you could do better.
     
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  12. Techno

    Techno Funster Life Member

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    The tap turns this shaft that in turn operates the dump valve inside the tanks outer surround. The Truma blown air heating feeds into that void. So as long as the heating is on there is no chance of freezing [​IMG]
     
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  13. jonandshell

    jonandshell Funster

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  14. LaMB

    LaMB

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    The baffle will just pull out. I also removed the tap by part turning it and pulling it out. Then I made the hole in the tap bigger (just make sure you don't go past the 'seal' part of the tap).

    I have pictures at home I can post if needed.

    Martin
     
  15. camocam1

    camocam1

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    If you could Martin that would be great thanks
     
  16. LaMB

    LaMB

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    I realised I had the pics on my USB stick, so here they are:-
     

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  17. GJH

    GJH Funster Life Member

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    We never had a problem with our waste pipe freezing on the Autoquest but I agree about the ridiculous tap. When ours broke (as they inevitably do) I replaced it with a water butt tap which gave a much better flow.
     
  18. scotjimland

    scotjimland Funster Life Member

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    Lagging ? pipes freezing ? wot's all that about ?

    buy a proper van like a Hymer, fit for purpose and suitable for the winter season.. ;)
     
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  19. PeteH

    PeteH Funster

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    The Lottery didn`t Come up (again!)

    Pete
     
  20. scotjimland

    scotjimland Funster Life Member

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    nah.. I used my RV as a deposit on a decent van :ROFLMAO::ROFLMAO::ROFLMAO:
     
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