Drilling out a lead joined pipe from a cast iron hub and replacing it with pvc via a fernco donut.
Cast iron drain pipe to pvc.
Old true cast iron pipe could suffer from thin wall syndrome but that s no longer an issue.
They are available in many sizes so make sure you purchase the one best suited for your particular needs.
Newer cast iron pipe is made so the wall thickness is uniform.
No hub couplings make it easy to connect to existing cast iron drain waste or vent lines with new pvc pipe.
Tying in to cast iron with pvc is a great way to add new waste lines.
Measure the length of the assembly and add 1 4 in.
Then mark that length on the cast iron with pencil lines and use zip ties to mark the cut on the pipe.
You can use stainless steel no hub clamps to make leak proof connections in case you want to run pvc into the cast iron.
Here i will be replacing the cast iron drain system to the master bathroom with abs drain piping.
Step 7 test for leaks you want to run water through the pipe to make sure there aren t any leaks.
It s also easy to work with if you re creating a new branch line.
Diy plumbing at its best.
A no hub connector is the standard coupler to join pvc and cast iron pipes.
Connect one side of your no hub coupling connector to the cast iron pipe.
Then replace the cast iron pipe with pvc pipe to repair a.
I made this video because i couldn t find one anywhere on.
It s not a guaranteed method of checking for leaks.
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.
Join the pvc pipe with the cast iron by inserting it into the adapters.
