Step 6 · Measure and Prepare PVC Pipe
Measure the exact distance between the two ends of the cast iron pipe. Using this measurement, cut a new piece of Schedule 40 PVC pipe to fit the gap. A ratchet-style PVC cutter provides a clean, quick cut. Alternatively, a hacksaw or miter saw can be used. After cutting, it's important to deburr the PVC pipe. Use a deburring tool or a simple utility knife to shave off any plastic burrs from the inside and outside edges of the cut. This ensures the pipe seats fully into the coupling without catching or tearing the rubber gasket.