WHat is the best and most economical way of going about this repair. I happen to be pretty handy but could use some guidance.
Someone said fill it in with lead. I have stick and mig welding experience but never looked into filling it with lead.
I can pretty easily get about 5 inches below the top layer of concrete (hollow under the floor for a few inches) so I can cut a big hole and lay a sawzall flat and get a clean cut under the holes. From there am I better off replacing it with a new cast iron/steel pipe and use a rubber clamp/gasket and metal clamp over it. Or maybe do the same thing but out of PVC and clamp a rubber sleeve and metal clamp over it. I don't want to make more work than what it is.
And here is the pic of ONE hole, theres another one on the other side. What are these holes even from. If it was frozen line on the inside it would push out.