What's a reasonable way to ream a vertical pipe and minimize the debris falling lower into the pipe? Just stuff a rag down in there, vacuum stuff off the top, and hope I can pull the rag out when done?

Online table says galvanized is 2.06 ID, XH cast iron is 2.00", Service CI is 1.96" - so can I just use a 1 7/8" hole saw? I guess I would need to figure out an extension for the mandrel?

I want to cut off this 2" galvanized pipe and replace it with PVC. I suspect the easiest would be to cut it off just far enough above the cast iron hub/poured joint, so there's a stub for a banded coupling.

While snaking, based on what I saw inside the CO about 3 feet above the joint, I may want to ream the galvanized stub, and maybe the cast iron. Not surprising since it has served the kitchen for 95 years. Pretty sure the "hair rat" that slipped down from 2nd floor got stuck right where the 2" PVC transitions to galvanized, about six feet off the floor.



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Links to the State of Wisconsin Plumbing Code:
[docs.legis.wisconsin.gov]
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I am not a plumber.
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Just put a weenie (at Home Depo on the end of your garden hose and blow it out with water pressure.

srloren

Just put a weenie ... on the end of your garden hose and blow it out with water pressure.

Sorry I wasn't more clear - the pipe is no longer clogged. I snaked it, I just want to eliminate the old galvanized pipe before this happens again.

I don't think the weenie would have any effect on the calcified sediment that is in the pipe, or would it?

*******************************
Links to the State of Wisconsin Plumbing Code:
[docs.legis.wisconsin.gov]
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I am not a plumber.
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95 year old hardened debris needs to be scraped of.
i would do just as you described.
cut the pipe about and inch above the lead, clean the stub well and use a no-hob stainless clamp.
put about 36 inches of plastic pipe and put a cleanout tee. from there you can snake down or up if needed.
when you are all piped, open the tee and run the snake wire down. run some water at the same time. wash all the loose debris down into the main pipe.

I was thinking if I wash the chunks down into the main line, they would just sit there forever like rocks. Sounds like you're saying don't worry about it. Thanks.

*******************************
Links to the State of Wisconsin Plumbing Code:
[docs.legis.wisconsin.gov]
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I am not a plumber.
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remove ALL the galvanized INCLUDING the piece 'leaded' into the hub


cut the galvanized where convenient above, but close to, the face of the hub


drill 3/16 holes vertically down into the lead as close as possible to each other (the lead is aboouuut 1/2-7/8" thick)


pick/chisel/pry out the lead


pick out the oakum


remove pipe stub


clean up the hub interior surface


install the new PVC using a rubber 'dougnut' gasket made for this exact purpose


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"Measure Twice & Cut Once" - Retired U.A. Local 1 & 638

Thanks for this option. I thought about that, it seems like a lot more work, but I suppose I need to figure out if it's SV or XH to start.

*******************************
Links to the State of Wisconsin Plumbing Code:
[docs.legis.wisconsin.gov]
*******************************
I am not a plumber.
*******************************