Removing PVC fitting
1" PVC installation about 30 years old. Brass check valve has internal leak. The check valve is about all that is exposed and very little of the PVC on either side is readily accessible. I will saw through one of the PVC male adapters at the "shoulder" of the threaded end and unscrew the valve from the other adapter. But I need to remove the cemented "collar" of the adapter from the pipe after the sawing. Any good suggestions for getting that piece off the pipe and leave the pipe usable for cementing a new fitting?