Two ways. Caulked joints and ty-seal joints. Cut the cast iron behind the hub and use a Clamp-all to join it to PVC pipe. If this sounds too difficult, CALL a Plumber.
Why do you want to replace your cast iron? That would be alot of work, only replace what you need to. Unless it is your sewer line then i would replace it all to the main. I agree with answer # 1.
IN ADDITION:
Back in the day, cast iron joints were sealed together with hot lead. Depending on the position of the cast iron pipe and the size of it. Either one can cut the cast iron piping and clamp PVC to it or you can melt the old lead out of the cast iron joints and place PVC piping inside and then "recork" (reseal) it with prattley putty to prevent it from leaking.
CORRECT
1- Older CI roof drains were installed by Caulking using oakum and then pouring molten lead
2- Some older CI drain drains used a Durham system meaning the Cast Iron drains were SCREWED the pipe galvanized in most cases and then the galvanized was caulked into a cast iron bell.
It is unprofessional and highly unskilled to replace a cast iron leader line with plastic for several reasons.
Seems the non skilled always try to use some type of epoxy..
You may want to contact a licensed master plumber who has had the required 10,000 hr apprenticeship training
Pvc pipes are cheaper. They are easier to join. They last longer.
galvanized water lines, cast iron drain lines, sometimes lead pipes, terracotta or clay pipes, and in rare cases wooden pipes.
cast iron
I can't imagine the plumber only giving 1 year on the PVC. Cast iron is rough on the inside and those rought spots can snag paper, lint, etc, eventually leading to blockage. PVC should last much longer and be less susceptible to blockages from material getting caught on the inside wall of the pipes. Also, PVC doesn't rust, while cast iron will. All-in-all, I'd have to vote for the PVC (make sure that it is at least Schedule 40 PVC).
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).
Pvc pipes are cheaper. They are easier to join. They last longer.
galvanized water lines, cast iron drain lines, sometimes lead pipes, terracotta or clay pipes, and in rare cases wooden pipes.
Galvanized pipe for water and drain lines. Cast iron pipe for main drain lines.
Cememt lined CI is used for potable water systems
bleach might work a little bit better then water but your best solution is get a drain cleaner solution or snake out the line. cola or coca cola has been known to disolve cast iron pipes but I never heard of or tried it to clean pipes.
I'm not sure, I believe so though.
The toilet and the sink both drain into the grey water waste lines. Because they are connected by piping, sound can travel through the pipes from the toilet to the sink.
Cast Iron, extra Heavy Cast Iron, service weight Cast Iron, No Hub Cast Iron, Yalloy, Durion, Galvanized steel, Galvanized wrought, Copper Tubing Type K,L,M, DWV, ACR, Brass Yellow and Red, and Thermo plastics.
cast iron
There is Black Iron pipe, made of iron. There is Cast Iron pipe, which is black in colour, made from old cars and their parts. There is black ABS plastic pipe, made of plastic. There is Utility pipe, also made from plastic.
Concrete and cast Iron pipes are made of cast iron and plastic piping systems normally use plastics
The cast of Pipes - 2010 includes: Phil Mackenzie as Arnold