Q&A for How to Cut Cast Iron Pipe

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  • Question
    When cutting an existing cast iron vertical sewer pipe in an older home, do I need tie off the pipe going up, or will it stay up on its own?
    Community Answer
    It's going to depend on whether or not the old pipe is secured already. In many older homes, cast iron wasn't secured to anything, in which case you will want to double wrap rope around pipe and secure above the area you are cutting.
  • Question
    What is the most important aspect of engineering?
    Community Answer
    Preparation. Nothing is more important than preparation. Fail to prepare, prepare to fail.
  • Question
    Will cutting an iron pipe with a saw cause it to vibrate too much?
    Community Answer
    As long as you apply the proper amount of pressure while cutting, along with a possible brace depending on the pipe location, you should be fine.
  • Question
    What do I do if there isn't enough room to install a rubber flange?
    Community Answer
    You will need to cut the pipe that you are splicing a little bit shorter so that your "no-hub" will fit properly.
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