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Cast soil stack

Discussion in 'Plumbing and Central Heating' started by ray316, 22 Apr 2015.

  1. ray316

    ray316

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    I'm taking my soil stack down at the top because is damaged to th first joint down which is about 2 ft I need to remove..
    So what is the best way to get this section out..
    Could I just smash it just above the joint, but do I risk pieces of cast iron dropping down the down pipe ...
    What other way can I do it ..angle grinder around it ..
    Ideas please..
     
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  3. TeaTime

    TeaTime

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    Certainly don't smash it up, you are bound to end up with bits in the stack. Cut just above the join you want to get at, so you can get a purchase on the pipe section left to remove.
     
  4. ray316

    ray316

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    ok so I will use my angle grinder which is 115mm disc size, what disc will be ok for cutting around the cast iron pipe...
     
  5. TeaTime

    TeaTime

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    A metal cutting disc.
     
  6. footprints

    footprints

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    With an angle grinder consider that the iron thrown off could cause rust staining on any light patio slabs, either cover or "Hoover" the patio after finishing ;)
     
  7. With a 115mm disc you will not be able to get through in one go, so you will have to cut away in sections (steps if you like) then clean up once the top section is removed.
     
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  9. And wear a mask and goggles, that metal dust sticks in your throat for days. :cool:
     
  10. ray316

    ray316

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    sorry a bit thick here..what do you mean by cut away in steps.
     
  11. Terry7556

    Terry7556

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    Last one I did I cut about 2/3 rds around .the small size of the grinder and the pipes close position to the wall prevent you going all the way around.
    I made the same cut about 5-8 inches above this ( depends how big the head of your grinder is)
    I then cut 2 vertical lines (one each side) joining the horizontal cuts and removed the curved rectangular piece ,which allows me to fit the grinder inside the pipe/ opening slot just created and complete the cut all the way around inside the pipe
    That give you an idea of how to go about it?
     
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  12. ree

    ree

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    i put the following into the Search facility: "cutting into a cast iron soil stack" and out (first in the Q) came the following comprehensive how to do it post from mnb in 2006.

    OP, why not try it?
     
  13. footprints

    footprints

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    Or send the wife up the ladder with a hacksaw! ;) ;)
     
  14. Or a nail file :LOL:
     
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