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Old 05-09-2012, 01:45 PM   #1
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Cast iron drain pipe replacement

My basement drain pipe is leaking. I want to replace the cast iron section with PVC. The pipe currently abuts to PVC 5 feet down the pipe already. How do I best cut the cast iron?


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Old 05-09-2012, 01:52 PM   #2
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Cast iron drain pipe replacement

There is a special tool for cutting cast iron .. it looks like a metal handle with a bicycle chain on it. Be careful when cutting cast iron, as you still have to support the VERY HEAVY piece that's left hanging behind!


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Old 05-09-2012, 01:54 PM   #3
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Cast iron drain pipe replacement

What tools do you have that you think you could cut it with. You may be better off to pay a plumber who has one of those chain type cutters than spend money on tools. If you want a sore arm a hacksaw does work. Otherwise they make reciprocating saws or grinders with the proper blades work but none will be as nice as the cut you get with the special tool.
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Old 05-09-2012, 01:56 PM   #4
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Cast iron drain pipe replacement

Cast iron piping can be cut with either a grinder or a tool referred to as a "snap cutter", "chain cutter", or "chain snaps".

CAUTION: Cast iron however, is extremely heavy and must be supported prior to cutting out a section. If you're referring to a vertical section (4" cast iron stack that runs through the roof). It must also be supported with a clamp on the roof.
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