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tibberous 07-14-2011 09:28 AM

Steel drain pipe?!
For some reason my house has a thick, metal drain pipe. I think it might be iron, not sure, but it is damn hard to cut through.

Two questions:

- Is there some trick to getting it apart at the fittings? Or at all? Cutting through four inch steel pipe with a cheap, battery powered recip saw is a huge pain.
- Once it's apart, what is the best way to connect it to PVC? It is already connected to PVC in another place with a rubber coupling - should I just use another one of those?

McSteve 07-14-2011 03:00 PM

It's probably cast iron. You''ll want to rent a tool called a chain cutter, which wraps around the pipe and cuts/snaps through it.

If this is a main soil stack running vertically, you'll want to somehow support the section above your cut before you cut it, because it weighs a ton and will otherwise head straight for the bottom of your house, with little regard for whatever might be in it's way. :eek:

To connect to PVC, those rubber couplings are just the thing.

tibberous 07-14-2011 06:49 PM

Took me like 8 hours, three blades and two saws, but I got through it with a recip saw - WHY IN THE HELL WOULD YOU USE CAST IRON?! Plus, there is ****-water all though my basement. =/

There is so much stupid stuff in this house - no foresite was ever put into anything. I've had to replace like three wires because they were attached with 1 1/2 long staples that were hammered in hard enough to cut the insulation. Finding so much bad **** too - like a 30 amp knob and tube fuse put in a box with 15 amp wire, old wires to phone / satalite / dsl / whatever, a second well (or maybe just a second pump) that does god-knows-what, HUNDREDS of nails in the joists - presumably to hang stuff??, dozens of (sometimes convenient) gas / water lines to know where. Just getting annoying, I figured I'd spend the day framing walls, and instead I'm having to reroute giant sections of IRON plumbing!

DannyT 07-14-2011 06:52 PM

cast iron used to be the standard and is still used in some applications today.

oh'mike 07-14-2011 06:56 PM

For others that are facing cast iron drains---spend $20.00 and rent a chain breaker--pops the pipe ,clean, in 5 minutes or less.

Marqed97 07-14-2011 07:20 PM

Heh...I've never lived in a house that DIDN'T have cast iron drain pipes. This past weekend staying at my sister's new house (basement bedroom) I did notice the PVC drains are quite a bit louder...

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