This depends on the size and the location of the leak. It depends because a leak on the straight piece of the pipe will differ from a leak on the joint of the pipe. It also depends on the corrosion of the pipe and the extent as to how bad it is.
Cast iron is not threaded, steel pipe is.
Male to female threaded adapters.
Demo a section of the wall.
No, not necessarily. Most likely the drain has become rotten because of something acidic going into it. Vent pipes usually have a good flow of air in both directions. I would just change the bad waste pipe(s).
For supply, it is copper and galvanized iron. For waste, ABS (plastic) or cast iron.
You can recycle a cast iron sink at your local recycling depot. For example, Miller Waste offers citizens to bring their cast iron sink to the depot for recycling for a fee.
Yes, cast iron can be recycled. It is a durable material that can be melted down and reused to make new products. Recycling cast iron helps to conserve natural resources and reduce waste.
1/8" - 10" threaded Cast Iron 11/2" - 15" Copper 1/16 - 10" These are the most common sizes
If it's threaded, yes. Fittings are usually difficult to remove because of rust and build-up on threads.
Waste - Vent - water supplyMaterialsCopper - Cast Iron - plastics
Cast iron scrap refers to waste or discarded pieces of cast iron, often generated from manufacturing processes or the demolition of cast iron products. This material is recyclable and can be melted down to produce new cast iron products, making it valuable in the metal recycling industry. Cast iron scrap can come from various sources, including old machinery, pipes, cookware, and automotive parts. Its recycling helps reduce environmental impact and conserves natural resources.
You must break or cut the wall at that point. No other option