Connecting Cast Iron Drain Pipe To Pvc

First fabricate your pvc wye fitting.

Connecting cast iron drain pipe to pvc.

They are available in many sizes so make sure you purchase the one best suited for your particular needs. Connect one side of your no hub coupling connector to the cast iron pipe. Modern cast iron pipe is made by spinning the metal and the pipe wall thickness is uniform. Since cast iron is no longer used for residential sewer systems you need a way to connect new pvc pipe to your old cast iron 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. Step 3 attach pvc pipe. Place the rubber union on the pvc pipe and then insert the pvc pipe into the center of the cast iron pipe. Tighten the remaining screws on the coupling making sure the screws are tight.

Tying in to cast iron with pvc is a great way to add new waste lines. No hub couplings make it easy to connect to existing cast iron drain waste or vent li. Next you should insert the plastic pipe into the coupling creating a connection between the cast iron pipe and the plastic pipe. 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.

A no hub connector is the standard coupler to join pvc and cast iron pipes. Once one end of the coupling is secured to the cast iron pipe you can get your plastic pipe. Measure the length of the assembly and add 1 4 in. 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.