Question: are cpvc and pvc compatible?
Answer: There is no special “CPVC to PVC glue,” so chemically joining CPVC and PVC requires solvent cement and primer that are strong enough to fully bond CPVC pipe. To connect PVC to a CPVC fitting (or vice versa) follow these steps: Brush CPVC primer on the outside of the pipe and inside of the fitting about 2 inches deep.