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Thread: clogged main drain line?

  1. #16
    Illinois Licensed Plumber SewerRatz's Avatar
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    Quote Originally Posted by Thatguy View Post
    Well, I'm sold.
    What kind of PSI does it take to make water do this to a chicken?
    Will these jets amputate fingers?
    Cut small tree roots?
    Jetters can cut you, but the fact it is injection of water under your skin is worse. I have three jetters. A small electric unit for sink lines and basic flushing, runs 1200 PSI at 2.2 GPM A 3000 PSI at 5 GPM and the other machine which uses the same nozzle as the chicken sandwich one is 1700 PSI at 18 GPM. They make units that go as high as 5000 PSI @ 12 GPM to 3000 PSI at 120 GPM. The GPM helps flush the line as the pressure breaks up the blockage. More GPM is needed in larger pipes to properly flush them out. To large of a jetter will take pipes apart.

  2. #17
    Master Plumber Redwood's Avatar
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    Our's does 4,000 PSI. @ 18 GPM

    Yes it will cut roots.
    And we're not going to let it touch my skin...

  3. #18
    Homeowner Thatguy's Avatar
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    Quote Originally Posted by SewerRatz View Post
    injection of water under your skin is worse.
    I got a book on hand injuries after my left hand lost a fight with a table saw blade, and in the book they talked about people getting paint under high pressure injected into the hand.
    Pretty grim.

    Power steering pump pressure can go to 4000 PSI and the auto books warn about this, too. Imagine getting that fluid in your eye? Yuck.

    That chicken-pulverizing video is sumpin' else.
    We're talking some real horsepower here.
    Last edited by Thatguy; 07-03-2009 at 08:37 AM.

  4. #19
    Plunger/TurdPuncher kingsotall's Avatar
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    Horsepower┐
    I just post cuz I like to see my avatar.

  5. #20
    Homeowner Thatguy's Avatar
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    Quote Originally Posted by kingsotall View Post
    Horsepower┐
    Maybe 5 hp to get these pressures and flow rates? Dunno'.

    Never mind -
    4 GPM / 3200 PSI, 10 HP
    Last edited by Thatguy; 07-03-2009 at 03:36 PM.

  6. #21
    Plunger/TurdPuncher kingsotall's Avatar
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    Spartan or Gorlitz needs to make a Hemi.
    I just post cuz I like to see my avatar.

  7. #22
    Homeowner Thatguy's Avatar
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    And the water comes out at 600'/sec, about half the speed of a pistol bullet.

  8. #23
    Master Plumber Redwood's Avatar
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    Last edited by Redwood; 07-04-2009 at 08:17 AM.

  9. #24
    Homeowner Thatguy's Avatar
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    What kind of pipes are there besides "plastic, metal or ductile iron pipes"?

    How many kilobucks for one of these water jet trailers?

    With this pressure and flow rate through a long skinny hose I'm not sure how much of the 50 hp actually gets delivered to the task.

    These tools are dangerous. . . Spinning tools can make for degloving injuries and Google Images has plenty of photos of this particular kind of accident.
    Last edited by Thatguy; 07-04-2009 at 01:34 PM.

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