Weight issues replacing cast iron pipe

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Weight issues replacing cast iron pipe

Post by TedMichon » Fri Apr 10, 2015 6:13 pm

I need to replace a 4 foot vertical length of 4 inch cast iron pipe in my living room wall that runs up the second floor. I am concerned about what happens when I actually free up and remove the old segment. Will the weight of the pipe on the second floor make the space smaller than the piece I removed and very difficult to insert the replacement pipe? Is there a trick to temporarily supporting the pipe above while I'm cutting, fitting, and installing the new piece? Or should I just ignore the problem as over-thinking and be ready to muscle the new piece into place?


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Re: Weight issues replacing cast iron pipe

Post by Shannon » Fri Apr 10, 2015 9:22 pm

It is a concern, if there are other pipes attached to that upper piece they should help hold it but there is a chance that the weight could break them or crack them. If possible to somehow support the pipe from above before cutting the lower area then do that as a
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