how will iron and cement join?

Installed a new bathroom on main level with shower stall. How do I connect the drain to a 3 1/2" clean-out on a cast iron pipe?

Help! I need to know what product to use to join drywall to cement board in my bathroom remodel. Any help will be appreciated.:confused:

I need to join a 4 inch cast iron to a pvc bent without using the oakum and packing led how do I do it?

I have gas/hot water heating system with radiators. I want to replace the iron pipe mains with copper tubing and adapt to the iron risers going up to the radiators. Is there a fitting to adapt unthreaded iron pipe to copper?

A few months ago, in our new addition, I plumbed an upstairs 3/4 bath in CPVC. I used purple primer (designated for PVC and CPVC) and used clear, medium bodied cement designated for PVC to make the joints. I just realized my error. The walls are still open. My question is, do I have to...