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Looking for way to cut cast iron sewer pipe that is located in a wall and between floors — I need to cut it in order to attach a new ninty degree angle in a different direction. I can only access one face of the pipe easily – studs and or floor joists reduce access to the other sides.
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Lou, it sounds like there is 'some' room all the way arund the pipe. If so, you can rent a 'snap cutter' to make the cut. Basically, it's a very heavy, bicycle-type chain with cutting wheels embedded in it that is hooked to a handle that lets you tighten the chain. A back and forth motion of a couple of inches is all that is necessary to operate the tool.
*Don's solution is the best, but you need about 1" clearance around the pipe. I have also used carborundim(sp) blades in a saws-all. They work but real slow. You also need to buy more than the salesman says you need.I have also just whacked them with a 4 pound hammer, and cleaned up the break with a 4" angle grinder.Are there lead joints or is it put together with mitchilen bands. If it is bands then maybe you can uncouple one and pull it out of the wall enough to use the chain cutter.
*Lou,Chain cutter.......I agree. You local rent-a-yard should have one. Look out though, they can be big. The last one I used took two men to heft it.You might call a plumber. His time just to come snap the pipe might be cheaper than renting a chain cutter for a day and having your neighbor drop it on his foot and blaming you for the rest of his life.Just a thought.Good luck,Ed.
*I did this a couple of years ago - just like previous recommendations, hire a plumber for an hour and consider supporting the upper pipe at least on a temporary basis if not permanent.
*Did this once a long time ago. Cut thru half of cast iron with cutoff blade, nicked rest except for about 1 inch near far wall, then tapped with cold chisel as it cracked around the back. Saw a 3" axial crack when done ("tappe" too hard?); so, removed wall, installed ABS, redid wall, etc. etc. Live and learn.
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Looking for way to cut cast iron sewer pipe that is located in a wall and between floors -- I need to cut it in order to attach a new ninty degree angle in a different direction. I can only access one face of the pipe easily - studs and or floor joists reduce access to the other sides.