In article , dpb wrote:
MiamiCuse wrote:
I have a 40 year old cast iron sewer line and there is a cleanout in the
middle of my concrete driveway.
....
Even closer on one of them:

http://i173.photobucket.com/albums/w...g/P1020895.jpg

The cement has to be quite thin considering if you look close enough, you
can actually see the metal rim flushed with the concrete driveway, although
it is surprising that the rim is so thin...

Yeah, that isn't cast drain, that's a thin wall tubing section.
[...]
There ain't no plug nor threads--there ain't enough material there to
house them.

I agree, no plug, no threads -- but I don't think it's any kind of thin-wall
tubing, either.

I think it's a Campbell's soup can.