how can i tie in to a drain , i have a toilet and sink,but the drain line is cast iron under concrete?

Answer 1

Talk to someone at a Home Depot, Lowes, or any other plumbing supply store. They may sell kits to access the cast iron drain.

I do have a bad feeling you are going to end up hiring a plumber for this!

Sorry.

Answer 2

If you cannot access the drainline above the concrete, you will need to chop it out. You can then cut the cast iron and use No-hub couplings to connect a piece of PVC and any fittings needed into the line. These couplings can be found at Home Centers and Plumbing supply houses.

Answer 3

That is the worst of all possible worlds. If you can't access the pipe inside a wall somewhere, you are seriously screwed; the only thing you can do is exactly what you would expect: jackhammer the floor, and dig up and replace the pipe. At least the replacement can be plastic.