I have a 40 year old cast iron sewer line and there is a cleanout in the middle of my concrete driveway.
I need to open it up for drain cleaning and video inspection purposes, and I could not figure out how to open it.
A close up:
My assumption is that right underneath this thin layer of cement is a cast iron or brass plug I can unscrew and open the access to the pipe. My worry is the plug threads may be corroded or stuck...but I can't even get to the first base.
I took a chisel and hammer and banged on the concrete inside the circles, I chipped off some concrete bits. I banged on it more, the concrete did NOT just shattered away and expose the metal plug, it almost felt like this concrete is much deeper.
I don't want to keep hammering at it because it will certainly ruin the metal plug thread or wedge it tight if I over do it.
I now wonder if I am not looking at brass plugs. Is it possible that there is no plug? That the pipes were "sawed off" flushed with the concrete driveway and they stuffed some newspaper or whatever to plug the holes without dropping to the bottom, then pour concrete in that space?
How do I open this up without being totally destructive? If there is nothing there and I break things loose, it will drop to the bottom of the pipe for sure.
My next step is to dry a masonry bit and drill down the middle and see how far it goes, but I thought I will post this here and get a few pointers first.
Thanks,
MC