On Jan 4, 2:04*pm, Jeff Thies wrote:
* *I've got some kind of a cleanout plug on the 4" cast iron street
drain. This likely hasn't been open in 80 years.

* *I'm anticipating trouble. Any hints? PB Blaster a waste of time?

* *I figure that I'll need to some Scotch to get through this.

* *Jeff

Waste of time to fool with unscrewing it. Drill a couple of holes (or
more) in the thinner part and beak it out. Plastic or brass is a good
replacement.

Joe