I have 6" CI pipe that has a 3" brass cap for clean out access. It's 40
years old. How can I remove it?
As I remember, in my old house when I had the sewer line rodded out they
used a cold chisel and 3-lb hammer to push the cap part way in to break the
thread seal then a large pipe wrench to screw it out.
Before I use this brute force approach are there any other methods?
I had same problem, and ended up using brute force technique -- used a hole
saw to cut a hole in the middle of the cap, then insert recip saw into hole
and cut cap into pie slices that could be pried away with a pliers (be
careful with recip saw when nearing the CI pipe threads). Brass is pretty
soft, so this wasn't all that difficult.
In our case, the cleanout is in the middle of a section of cast iron pipe
about a foot long attached on both sides with a no hub coupling. When I
get around to it, instead of cutting out the brass cap, I will remove the
section with the cleanout and replace it with a new section with a new
"Paul" < firstname.lastname@example.org> wrote in message
The brass cap was less than 1/8" thick. I easily drilled 6 holes in one
region near the square nut then hit the nut using a 3 lb. hammer. The second
hit collapsed the cap inward and it split. I used a cold chisel to push the
cap threads away from the CI threads and was able to break off a quarter
section of the cap. A few more taps onto the cold chisel in other regions of
the cap threads and I was able to unscrew the cap.
Total job took less than 5 minutes.
thanks to all who responded.
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