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Old 12-29-2011, 01:55 PM   #1
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split cast iron pipe


I have a 5ft piece of cast iron drain pipe in my wall that is cracked almost the whole way down. I was going to replace it with pvc pipe, but i'm worried about cracking the pipe even more. What can i cut the pipe with so it don't break.

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Old 12-29-2011, 02:02 PM   #2
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Originally Posted by lstroble97 View Post
I have a 5ft piece of cast iron drain pipe in my wall that is cracked almost the whole way down. I was going to replace it with pvc pipe, but i'm worried about cracking the pipe even more. What can i cut the pipe with so it don't break.
If I was going to get into it to replace 5 feet of it, I'd just replace anything I could reach with PVC.

But to answer your question, they make blades just for cast iron for a recip. saw.

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Old 12-29-2011, 02:03 PM   #3
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666 posts????

Yea, I don't think so.............ignore this post, it's only for my own peace of mind
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Old 12-29-2011, 02:06 PM   #4
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Thank you.
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Old 12-29-2011, 02:11 PM   #5
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split cast iron pipe


Thanks guys I'm new to plumbing. I have a 110 years old house , and can't afford a plumber or a husband .
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Old 12-29-2011, 02:14 PM   #6
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split cast iron pipe


a sawzall or a 4 inch grinder with a metal blade in it.
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Old 12-29-2011, 02:26 PM   #7
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can't afford a plumber or a husband



I know some husbands that would say the same about their wives....guess it's all a matter of perception.
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Old 12-29-2011, 03:29 PM   #8
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I have a 110 years old house , and can't afford a plumber or a husband .
I used to have a sorta GF that fit this description.
Accommodations can be arrived at.
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Old 12-29-2011, 03:52 PM   #9
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I wouldn't want my lady try to cut a cast iron pipe with a sawzall and have the blade get pinched on her. At rental stores you can rent for a couple of hours a tool that breaks (cuts) cast iron neatly and easily. I don't remember the name, but it looks like a big wrench with a bycicle chain sticking out from it.

If it doesn't leak and is in a wall, we are talking about a vent. Ducktape can take care of that.
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Old 12-29-2011, 10:26 PM   #10
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I wouldn't want my lady try to cut a cast iron pipe with a sawzall and have the blade get pinched on her. At rental stores you can rent for a couple of hours a tool that breaks (cuts) cast iron neatly and easily. I don't remember the name, but it looks like a big wrench with a bycicle chain sticking out from it.

If it doesn't leak and is in a wall, we are talking about a vent. Ducktape can take care of that.
Soil pipe cutter, is one name its known by,, I would not recommend she use this either, lots of bad things can happen with any method she uses , best thing she can do is temporally seal it, save money call a plumber. If all goes well,, 2 cuts 2 no hub couplings 2 no hub adapters, 5 feet of pipe one and a half hour labor. That’s if all goes well.. should not be too expensive. And done correctly none of this pipe to pipe fernco garbage.
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Old 12-30-2011, 10:24 AM   #11
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Soil pipe cutter, is one name its known by,, I would not recommend she use this either, lots of bad things can happen with any method she uses , best thing she can do is temporally seal it, save money call a plumber. If all goes well,, 2 cuts 2 no hub couplings 2 no hub adapters, 5 feet of pipe one and a half hour labor. Thatís if all goes well.. should not be too expensive. And done correctly none of this pipe to pipe fernco garbage.
Not to mention I wouldn't recommend a soil pipe cutter on a cracked piece of cast iron either.


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Old 12-30-2011, 08:49 PM   #12
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Originally Posted by abracaboom View Post
I wouldn't want my lady try to cut a cast iron pipe with a sawzall and have the blade get pinched on her. At rental stores you can rent for a couple of hours a tool that breaks (cuts) cast iron neatly and easily. I don't remember the name, but it looks like a big wrench with a bycicle chain sticking out from it.

If it doesn't leak and is in a wall, we are talking about a vent. Ducktape can take care of that.
Ive seen more old cast iron crushed by snappers than Ive ever seen screwed up with a recip-saw
How big is the pipe?
Normally you shouldnt use pvc pipe in line vertically between 2 pieces of cast iron,the weight of the cast will damage pvc.
Cast iron and pvc also expand/contract at differant rates.
Can you post a picture of the pipe so we can have a better idea of what youre up against?
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Old 12-31-2011, 01:51 PM   #13
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thanks everyone...cut out the old 4" cast iron pipe with my grinder and reciprocating saw . replaced with a pvc pipe . works great...no leaks . now have to sheet rock..lol
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Old 12-31-2011, 02:17 PM   #14
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Dang--You just get right to it and get the job done,don't you?

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