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Thread: Mystery cable installation process - GIF

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    Jon
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    Mystery cable installation process - GIF


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    Long shot: -Re-lining a leaking sewage/ drain tunnel?
    Seems like the flat ribbon feeds through and around the perimeter and (perhaps get heat-welded or just)
    zip-locked to the previous turn, making a tight liner, albeit with a smaller section than the tunnel itself...

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    Quote Originally Posted by DIYSwede View Post
    Long shot: -Re-lining a leaking sewage/ drain tunnel?
    Seems like the flat ribbon feeds through and around the perimeter and (perhaps get heat-welded or just)
    zip-locked to the previous turn, making a tight liner, albeit with a smaller section than the tunnel itself...
    That would be my guess as well. One of the comments mentioned a product called "SRP" and some judicious googling got me to this, that is perhaps the same thing or very similar:


    https://www.conteches.com/pipe/steel...rpe-pipe/sprpe

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    Thanks, Clavius! Excellent link. -So that's why the tube's dia is less than the surrounding concrete culvert,
    to have grout pressure injected between it and the liner (then itself probably filled to resist the grout's pressure).


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