copper question

Discussion in 'Irrigation' started by mitchgo, Sep 8, 2010.

  1. mitchgo

    mitchgo LawnSite Silver Member
    Messages: 2,889

    My question is can you re-shape a copper pipe that has been somehow turned into a oval shape and be able to solder/ use it?

    With poly I can just heat and re-shape...

    I don't deal with copper too often and when I do it's simple enough.

    Except for this job.

    I should have taken pictures

    I was starting a install this morning, the customer had renovated his house a few years back and had a plumber stub out a copper pipe in his back yard for future irrigation. The pipe goes under a 15' wide cement patio into the house
    With all the nice cement walls and rocks it's virtually impossible to get underground pipe from the back to the front with out being cost effective.

    So we are doing to seperate DCVA's for the front and back. Now onto the situation

    When we dug up the copper it was bending upwards for about 2' and then it straightened out closer to the cement patio. I cut the 2' off to get a straight line of copper pipe, however the pipe is in a oval shape.
    ( 1" 1/4) . I can't even get a fitting around the pipe. Further more ,The pipe is about 6" below the cement, though flush up with the cement the copper pipe is somehow kinked with an indentation roughly 20% of the pipe. Warping the rest of the piping more. I underminded about 8" before I believe it returns to a normal round shape, but to do the work under 8" of the cement would be rather hard.
  2. Mike Leary

    Mike Leary LawnSite Fanatic
    Messages: 22,825

    The plumbers should eat this one, if they're still around. Sad deal; screwed by the plumbers, again. I don't think a pack-joint or anything else would relieve you of liability if you tried a tie-in and it failed. :dizzy:
  3. mitchgo

    mitchgo LawnSite Silver Member
    Messages: 2,889

    I agree... Even if I could get it to hold I wouldn't trust it.
    I'm letting my boss decide what needs to be done. I would guess it will add about $1000 to are original bid to bring pipe to the back. yikes

    Messages: 18,668

    You can round copper. I used channel locks and got pretty nifty at it. Another thing you can do is take the large copper tube cutters and just put the blade on the copper then spin it around a bunch to round it out. If you push the cutter as you are turning it you can get it to go down the tube and round it out some more.

    Dig a giant hole to get to the good stuff.
  5. Waterlogged

    Waterlogged LawnSite Senior Member
    from Texas
    Messages: 584

    I agree with Fimco. Channel locks do work. I've done it many, many times. Most of the systems we tie-in here are copper and it's sometimes rolled copper. So very rarely is it straight. It just takes a little patience. Try not to gouge or nick the pipe with your pliers. I sometimes use a fitting that I'm not going to solder on, that is the same size and use it to shape my pipe. You might be able to tap it on, but just remember you have to be able to get it back off. Be patient, I know you've got the skill to do it.
  6. S.O.Contracting

    S.O.Contracting LawnSite Member
    Messages: 186

  7. Mike Leary

    Mike Leary LawnSite Fanatic
    Messages: 22,825


    Messages: 18,668

  9. Mike Leary

    Mike Leary LawnSite Fanatic
    Messages: 22,825

    That means a lot if you got a slow leak forever because you did a C.S. tie-in.
  10. 1idejim

    1idejim LawnSite Fanatic
    Messages: 10,607

    pg 893 of cat#171 out of date

    they have numerous tools for rounding pipe but none that any of us can afford to use every now and then.

    i like the cutter without the wheel idea pete, mine is using flaring tool.

    any re-reounding comes with potential problems even with the high dollar tools.

    come to think of it, i have a shaper that i bought at a plumbing supply but it only works on open ends

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