Tying in to cast iron with pvc is a great way to add new waste lines.
Connecting cast iron drain pipe to pvc.
Next you should insert the plastic pipe into the coupling creating a connection between the cast iron pipe and the plastic pipe.
Tighten the remaining screws on the coupling making sure the screws are tight.
Once one end of the coupling is secured to the cast iron pipe you can get your plastic pipe.
First cut your pvc pipe so it is longer and can be inserted a good 6 inches into the cast iron pipe without restricting any other flow in the system.
Or you re thinking about repairing leaks in an older home s system to prolong the inevitable replacing the entire system which btw is our recommendation.
A no hub connector is the standard coupler to join pvc and cast iron pipes.
Place the rubber union on the pvc pipe and then insert the pvc pipe into the center of the cast iron pipe.
Tying in to cast iron with pvc is a great way to add new waste lines.
They are available in many sizes so make sure you purchase the one best suited for your particular needs.
Using a regular wye cut two lengths of pvc that will slip into the ends of the wye fitting and hold the no hub fittings that attach the pvc to the cast iron.
Modern cast iron pipe is made by spinning the metal and the pipe wall thickness is uniform.
Now tighten down the hose clamps to make the connection.
Step 3 attach pvc pipe.
Connect one side of your no hub coupling connector to the cast iron pipe.
Cast iron vs pvc if i were building a new home today all of my drain lines would be modern cast iron.
First fabricate your pvc wye fitting.