0
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
What else can I help you with?
Why were cast iron pipes replaced by PVC pipes?
Pvc pipes are cheaper. They are easier to join. They last longer.
What metal is old and used for plumbing pipes?
galvanized water lines, cast iron drain lines, sometimes lead pipes, terracotta or clay pipes, and in rare cases wooden pipes.
What is CI pipes?
cast iron
Which is better and will last longer when replacing main sewer drain lines - cast iron pipes or 4 PVC pipes if the plumber gave you a 3-year warranty on the cast iron and a 1-year on the PVC?
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).
If you have to replace leaking cast iron drains should you go ahead and replace the cast iron vent pipe too?
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).
Why were cast iron pipes replaced by PVC pipes?
Pvc pipes are cheaper. They are easier to join. They last longer.
What metal is old and used for plumbing pipes?
galvanized water lines, cast iron drain lines, sometimes lead pipes, terracotta or clay pipes, and in rare cases wooden pipes.
What kind of plumbing pipes were used in 1955?
Galvanized pipe for water and drain lines. Cast iron pipe for main drain lines.
Can cement-lined cast iron pipes be used as potable water supply or as drain pipes only?
Cememt lined CI is used for potable water systems
Do bleach and cola work to clean drain pipes?
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.
Is sulfuric acid safe to clean old cast iron drain pipes?
I'm not sure, I believe so though.
What are the different types of drain pipes available for residential plumbing systems?
The different types of drain pipes commonly used in residential plumbing systems include PVC (polyvinyl chloride), ABS (acrylonitrile butadiene styrene), and cast iron. PVC pipes are lightweight and easy to install, while ABS pipes are durable and resistant to chemicals. Cast iron pipes are strong and long-lasting, but can be more expensive. Each type of pipe has its own advantages and is chosen based on the specific needs of the plumbing system.
Why does the bathtub drain make a noise when you flush the toilet?
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.
What is drain pipe?
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.
What is CI pipes?
cast iron
How can I connect PVC to cast iron pipes?
To connect PVC to cast iron pipes, you can use a rubber coupling with stainless steel clamps. Make sure the pipes are clean and dry before attaching the coupling. Tighten the clamps securely to create a watertight seal between the PVC and cast iron pipes.
What are plastic drain pipes of?
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.
