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Thread: Pipe bursting to remove a belly.

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    Default Pipe bursting to remove a belly.

    I wanted to wait till I had achieved success till I posted this trick. If a belly is under 12ft and holding 1/2 water to the spring line. You can use a larger head in this case 6" on a 4" line. But pull in 4" pipe. The 6" head really pushes the old pipe outward and compacts the soil. The belly was about 7 feet and it is gone now. Will it return as the earth settles? Who knows just giving out the information. If it didn't work I was fully prepared to pull in a 6 inch line and upsize the sewer. That is the cool thing that bursting can do is upsize the line.
    Seattle Drain Service
    Bryce Kennedy
    Sewer and Drain Contractor
    Http://www.seattledrainservice.com

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    dcman (02-20-2012), DRAINSMITH (02-20-2012), plbgbiz (02-23-2012), Redwood (02-21-2012), SewerRat (02-21-2012), UnclogNH (02-20-2012)

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    Nice Trick! Thanks for the bursting lesson!

    Will you be monitoring this over time to see how the technique holds up to settling?
    I'd be curious what it does several years from now...
    As you probably are as well...
    "99% of Being Smart...
    Is Knowing What You're Dumb At"


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    Cuda (02-21-2012)

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    Quote Originally Posted by Redwood View Post
    Nice Trick! Thanks for the bursting lesson!

    Will you be monitoring this over time to see how the technique holds up to settling?
    I'd be curious what it does several years from now...
    As you probably are as well...
    On this job they are on a tight budget and lining may be needed so I might be back to look later on but don't know for sure. I would like to go back in a year or so. I should also mention that we flooded the work area with water to really moisten up the soil and posistioned the pull cable at the bottom of the pipe to pull in as low as possible thinking it would drop the whole line down. Everybody wants pipe lining but I trully believe that hdpe is the toughest pipe out there and makes a 100 year solution to sewer problems.
    Seattle Drain Service
    Bryce Kennedy
    Sewer and Drain Contractor
    Http://www.seattledrainservice.com

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    Redwood (02-22-2012)

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    Quote Originally Posted by Cuda View Post
    Everybody wants pipe lining but I trully believe that hdpe is the toughest pipe out there and makes a 100 year solution to sewer problems.
    I'll easily agree with you on that...
    The weakest part of the HDPE line is where it ties to another material....
    "99% of Being Smart...
    Is Knowing What You're Dumb At"


    411 Plumb | Click Here For A Free Internet Plumbing Directory Listing | Plumb 411

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    Or use one of these....HDPE Transition.jpg

    Kinda pricey though. This one is 6" sch 40 PVC to HDPE. Over $200. Depends on how critical the connection is.

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    Cuda (02-23-2012), Redwood (02-24-2012)

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    I really like that fitting but the connection to the concrete is where I always go hmmm. We paint on lime and wrap it with fabric.
    Seattle Drain Service
    Bryce Kennedy
    Sewer and Drain Contractor
    Http://www.seattledrainservice.com

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    Quote Originally Posted by Cuda View Post
    ....We paint on lime and wrap it with fabric.
    Never heard of that. Could you explain it a bit more?

    That transition fitting in the pic we are using on a special project where we needed a couple of 6" combos for C.O.'s at the upstream end. Then the pvc will connect to the 6" clay that is not being replaced. Probably Ferncos with the stainless sleeve. Then concrete.

    I'm very curious about the purpose of the lime. I am guessing it eliminates future root growth.

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    Quote Originally Posted by plbgbiz View Post
    Never heard of that. Could you explain it a bit more?

    That transition fitting in the pic we are using on a special project where we needed a couple of 6" combos for C.O.'s at the upstream end. Then the pvc will connect to the 6" clay that is not being replaced. Probably Ferncos with the stainless sleeve. Then concrete.

    I'm very curious about the purpose of the lime. I am guessing it eliminates future root growth.
    Yea it's suppose to make the roots go elswhere and since there are no more joints to go to we just brush it on and then do fabric around the joint. Does it really need it I dunno it's cheap takes 2 seconds and if it helps I feel I did the best job we could.
    Seattle Drain Service
    Bryce Kennedy
    Sewer and Drain Contractor
    Http://www.seattledrainservice.com

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    plbgbiz (02-24-2012)

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    What are your soils like? The little bit of bursting I've been involved with here did not go real well. Our soils are so rocky they don't move much (or so I was told) and they had a lot of trouble trying to upsize a line. Ended up digging up so many spotds they might as well have just dug all of it.

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    Cuda (02-24-2012)

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    Quote Originally Posted by Ace Sewer View Post
    What are your soils like? The little bit of bursting I've been involved with here did not go real well. Our soils are so rocky they don't move much (or so I was told) and they had a lot of trouble trying to upsize a line. Ended up digging up so many spotds they might as well have just dug all of it.
    I think we have everything lol! Sand (yay, easy) clay, glacial till, rocks big and small. Maybe the water table and rain play apart here. I have heard of other people in hot climates having to use super high pressures to do the same pipe size and length that we do.
    Seattle Drain Service
    Bryce Kennedy
    Sewer and Drain Contractor
    Http://www.seattledrainservice.com

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